
These days, we're faced with the atrocious fear of viruses like Ebola because we've seen it cross our borders. But there's more than Ebola out there. Prepare to be shocked, disgusted and afraid... very, very afraid. An organism could be inside you, feeding on you or infecting you at this very moment! A parasitic, bacterial, viral or fungal attack is like a tumultuous roller coaster within the body that can take terrifying - sometimes deadly - twists and turns. Host/biologist Dan Riskin provides scientific perspective throughout this 10-part series that vividly recounts the stories of people tormented by sinister creatures that have invaded their bodies.
Parasitic worms eat the brain of an 11-month-old; a war veteran has a parasite that has lived in him for the past 36 years; a man has a parasite living in his brain.
A group of students return from a tropical vacation only to discover there are worms inside their brains; a water-borne parasite causes the worst parasitic outbreak in U.S. history; a man and several others have a parasite that isn't endemic to their state.
A man has something growing in his head; a chemical worker discovers parasites in his lungs; a woman is horrified to find she picked up some stowaways from a hotel.
A parasite eats away at a teenage girl's eyeball; a man picks up a parasite as a young child, but only 60 years later does it become a problem; a runner is attacked by a tick-borne parasite.
A four-year-old boy has parasites invading his eye; a day at the lake turns into a nightmare when a ruthless brain-eating monster attacks the brain of a young boy; a man travels to Africa and picks up a stowaway that attacks his blood.
A woman battles an invincible brain-eating monster; a farmer does battle with a parasite that cannot be killed; a banker is infected with the deadliest parasite on the planet.

Parasites stop a fit and active dance instructor in her tracks; a man deals with parasites in his brain; a scientist picks up parasites from a trip to Africa.

A monster attacks the liver of a schoolteacher; a dancer is left debilitated by parasites; a man develops an itch that drives him crazy.

A nine-year-old boy slips into a coma after a deadly brain-eating monster attacks; a computer programmer is infected with the deadliest parasite on the planet; a marathon runner has an enlarged spleen from parasites.

A mother is left shocked when her daughter loses her appetite but then suddenly develops cravings for salt and cat food; a man suffers a damaged colon from a common bacteria; a traveling couple are left fighting an age-old killer.

A teenage boy is attacked by a disease that's causing his flesh on his face to rot; an intruder drives a model/actress to the brink of suicide; a college student finds herself struggling for every breath.


A 7-year-old girl fights a centuries-old disease; a yoga instructor discovers what she thought was influenza is actually a flesh-eating disease; a state-wrestling champion travels abroad but picks up a deadly disease while there.

A 2-year-old boy swallows something horrific; a teenage ballerina suffers debilitating migraines from an infection; a preacher thinks he has a worm in his eye.

A deadly infection puts a man through organ failure; an 8-year-old girl is infected with a disease that kills almost all it infects; a college student has something devouring his eyeball.

Teenage girl in Tennessee has life-threatening inflammation of the brain; matriarch of a large Louisiana family hosts flesh eating infection; reality TV competitor in California returns from Fiji with creature attacking vital organs from the inside.

When three unsuspecting young families are thrown into a tailspin, they are shocked to learn of the tiny culprits wreaking havoc on their lives. First, a married couple in California watch helplessly as their son struggles for every last breath.


The worlds of three families are turned on their heads. A mysterious outbreak leads to a four year old boy drowning in his own mucus. A wound in a seven year old's knee has a vile cause. And bizarre dreams precipitate a college student's hospitalization.

The lives of three families are twisted in knots. A mysterious infection brings a tough ultra-marathoner to his knees. A teenager contracts one of the most feared diseases on the planet. And a woman's brain is practically set on fire.


A boy getting sick, upchucks his own feces; teenager contracts horrifying disease; young girl's illness is undiagnosable, so she is quarantined.

A baby falls mysteriously ill and struggles to breathe; a man has something living in an embarrassing place; a woman's weight gain confounds experts.

A mysterious infection brings a tough football player to his knees. To her horror, a stay-at-home mom has parasites devouring her eyeball. And a marina dock master is attacked by sea creatures!

A young girl is brought to the hospital with stabbing pains in her scalp. A wife and mother is struck down by a severe string of mysterious symptoms that threaten to tear her family apart. A deadly invader turns a relaxing vacation into a nightmare.

A man falls comatose. A college student's sore throat turns deadly. A woman's bizarre symptoms confound experts.

A man experiences bizarre swelling around his eye. A 12-year-old girl falls mysteriously ill. A young woman is struck by a bizarre set of symptoms that leaves her on the verge of madness, and neither her family nor her doctors can understand why.
Complete episode guide for Monsters Inside Me with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.

A three-year-old girl suffers severe vomiting, diarrhea, and weight loss after she is infected by a parasite; a firefighter battles for his life after a mysterious monster begins devouring his brain; a teenage girl has parasites attacking her retinas.

A college student gets a wound that won't heal; a cat scratch leaves a woman with a parasitic monster; a couple get mysterious rashes that come and go.

An exotic meal leaves a carpenter fighting for his life; an athletic woman discovers she has parasites in her bladder; a war veteran is horrified to discover worms are living inside him.

A teenage boy is left fighting for his sight when something invades his eye; a man deals with a parasite that he's had for the past 30 years; a young schoolgirl suffers from debilitating stomach cramps.

A traveler's nosebleeds have a disgusting cause behind it; a man considers deliberately infecting himself with a parasitic worm to cure his allergies: a 6-year-old girl has a parasite in her foot.

A caregiver is attacked by a blood-eating parasite, and his lack of a spleen makes it worse; a woman fights a parasitic worm traveling throughout her body; an older woman fights for her life when parasites attack her intestines.

A 7-year-old suffers a horrific seizure as the result of a parasite being in her brain for many years; a machinist fights a parasitic worm threatening to take his sight; a parasite attacks a team of doctors.
A man travels to South America with his girlfriend, but picks up a flesh-eating souvenir along the way; a man develops severe back pains before the cause is discovered; a promising athlete is sidelined by a mysterious infection.

An unusual intruder causes a newlywed woman's mental state to deteriorate; a young boy may lose his life when an infection causes his muscles to break down; an infection causes a plumber to lose 50 lbs.

A teenage girl has an intruder in her hand; a man tries desperately to eviscerate a can tab he accidentally swallowed; parasitic worms attack the brain of an otherwise healthy man.

A pregnant woman is attacked by a monster that threatens the life of her unborn baby; an elderly man has something in his lungs that stumps doctors; a truck driver is blindsided by a parasite.

A pregnant woman slips into a coma when a horrifying intruder invades her body; a woman is left in shock when she coughs up live worms; a teenage girl suffers a chain of symptoms and doctors are unable to figure what's causing them.

A baby swallows a common everyday object that burns a hole in his esophagus; a university student has a mysterious intruder in her brain; a young woman is put in a battle with a tropical disease.

A two-year-old does battle with a deadly infection; a man has surgery to remove a tumor from his back, but the doctors accidentally leave something inside him; a 7-year-old baseball star suffers horrifying seizures that leave his parents traumatized.

Doctors discover an infection that is shutting down the organs of a young man; a teenage girl searches endlessly for a diagnosis to her mysterious chronic disease; a woman is shocked to find something is inside her breasts.

A two-year-old girl has a mysterious lump on her neck; a mother-of-two is plagued by nausea and stomach cramps for four years before finally discovering what's wrong; a 5-year-old boy writhes in pain when his own body sends immune cells to attack itself.

A young boy's summer vacation grinds to a halt when a deadly monster attacks; a man suffers bizarre hallucinations before being hospitalized; a former beauty queen suffers an extreme case of asthma.

A woman travels to Burkina Faso only to fall ill when a parasite strikes; a deadly infection threatens to suffocate a young mother; a baby boy has roundworms eating his brain.

A teenage boy survives being sucked into a tornado, but his trauma wounds become the open door for a deadly fungus that threatens to take his life; a young couple travel to Africa only to get ugly spots on their skin; brain lesions cause a man to have violent outbursts.

A teenage boy accidentally swallows a dangerous foreign object; brain-eating monsters present a teenage girl with encephalitis; an industrial painter struggles to breathe and walk when intruders invade his body.

A young couple return home for the holidays to discover a monster has joined them on the trip home; a man's crippling back pains leave him hospitalized; a young woman struggles to breathe after she is infected with a deadly fungus.

A newborn baby has a parasite that's eating at his brain, leaving him blind; a young boy has a mysterious brain infection; a part-time contractor has parasites in his lungs.
A Massachusetts EMT is shattered by a routine emergency call when she discovers that the victim is her son. A self-described tough guy in New Jersey is reduced to tears when something sinister starts to rip apart his intestines.

Illinois contractor who suffers bump on his head finds himself fighting for his life in the ICU; college football player is in agony from life threatening blinding headaches; mystery illness threatens life of boy 48 hours after beach day.

The lives of three young people are suddenly turned upside down. In South Dakota, what begins as a common sore throat quickly spirals out of control for a fifteen year old girl, as a rare and dangerous affliction leaves her clinging to life.

A war veteran, a PhD scientist, and a newborn, all clinging to life by a string. In Tennessee, new parents are horrified when a deadly infection pushes their baby daughter to the brink of death.

Christmas time is here, and these three victims each receive a monstrous gift. In Florida, a woman is out Christmas shopping when she suddenly feels a stabbing pain in her eye so severe that she believes she sees shadows of worms in her eye.

Trouble is lurking in the bodies of three different women. In rural Washington State, a teenager's shoulder pain leads to her being quarantined in a matter of days. If doctors can't determine what's attacking her, she'll die.

Toddler struggles to breathe in Saskatchewan but gets worse in the ER; Virginia teen's seizures and sudden blindness leads to a horrific discovery in her brain; six-year old with rash and high fever ends up in the ER.

Three healthy people with a love of the outdoors are struck down by a deadly menace that lurks inside them. In Ohio, a young boy wastes away in front of his parents' eyes as a mysterious infection overtakes his body.
The lives of three families are thrown out of whack. One infection rips a man's leg apart. A rare brain infection pushes a seven year old girl toward suicide. And another lands a woman in the hospital, eluding the doctors.

The lives of three families are turned upside down. A couple purchases their dream home, but it turns into a living nightmare. An insidious creature takes a man's spleen. Will he lose his life? And a domestic pet takes a young boy to the edge of death.

Horrific tales from three families below the Mason/Dixon line; baby faces near death from common household item; man discovers worms crawling throughout his lungs; female boxer fights for her life.

Three infections terrorize their victims; 2-year-old girl screams in pain and is near death; neuro-psychiatrist experiences multi-organ failure; woman's life hangs by a thread.

Infection is eating away a college student's eyeball; mysterious infection paralyzes a 6-month-old boy in just 24 hours; mother recovering from giving birth gets a nasty surprise.

Three infections emerge from the most every day locations. One affliction hits a teenager, which shuts his lungs down. Another attacks the nervous system of a personal trainer. And a third infection eats the blood of a holistic health worker.

Doctors must cut out half of Christmas baby, Lillian's, brain which is is malformed and causing seizures; PR executive Jenny endures risky surgery on the eve of Hanukkah; school teacher Dawn must have brain surgery on Christmas... while she's awake.

A cut on his knee causes a teenage boy to become feverish and fatigued; Dee and Tom experience nasty rashes, difficulty breathing and memory loss after they move into their new home in N.M.; in Hawaii, something is destroying Jade's retinas.

A family's cruise ship vacation turns into a living nightmare when their two year old swallows a sinister monster. A mother of two is plagued with a mysterious infection. Deadly parasites hijack the brain of a six-year-old boy.

Monsters can hijack our bodies in any number of ways. A man breaks out in a mysterious painful rash. A woman experiences bouts of piercing pain in her throat. A teen girl is left debilitated by strange spells of dizziness and fatigue.

Three families are turned upside down by deadly monsters. A four-year-old boy is plagued by crippling pain. A college student with a small cut finds herself fighting for her life. A woman is driven to insanity by an intruder in her own body.

A Christmas baby is born, but doctors find her brain was infected in utero. A woman thinks a worm is in her eye, and a man gets a nasty surprise after surgery.

An infant falls mysteriously ill. A biology professor becomes an unexpected host. A family man is brought to the brink.

Doctors discover an invader in a young man's brain; a new mother is in critical condition; a young boy's illness defies antibiotics.

A boy is struck down with a strange condition. A woman has bizarre symptoms that push her to the brink of madness. A toddler falls into a trance-like state.

A teenager develops mysterious blotchy sores. A tough athlete is struck down by a rare disease. A woman battles strange bouts of vomiting.

A man starts coughing up blood. A newlywed husband is struck down by a rare disease. A young father experiences crippling abdominal pain.

An infant is suddenly paralyzed. A young father grapples with a monster that threatens to blind him. A woman's excruciating pain confounds experts.

A young woman is struck down by a dangerous parasite. An infant becomes mysteriously ill. A midwestern man is brought to the brink by a deadly fungus.
A man bangs his head and is left fighting a rare medical mystery; a wound in a boy's knee harbors an uninvited guest; a man unwittingly feeds his own intended killer.

A man develops a strange growth on his wrist. A nurse sees twig-like pieces in her urine. A pregnant woman falls dangerously ill with flu-like symptoms.