Tiny Monsters

When a seven-year-old boy comes down with a headache and high fever, what doctors believed was viral meningitis becomes a potentially deadly mystery.

My Wife Can't Breathe

Following the loss of Dr. Autumn Klein, a colleague examines her chart and helps solve the mystery of what led to her death.

Outbreak

A patient is treated for suspected meningitis, but his condition only worsens. When other patients began to have the same symptoms, the doctors must act fast to save lives.

Family Secret

Nine months after Mark Staudte suddenly fell ill and died, his daughter is also hospitalized. Doctors are stumped until they receive a phone call that will change everything.

What's Wrong with the Twins

A pair of young twins begin to experience subtle changes, but medical testing reveals that they have a strange, genetic disease that causes progressive neurological deterioration.

Mysterious Epidemic

On September 29, 1982, seven Chicago-area residents die under mysterious circumstances. After the cause of death is established, a task force begins their investigation.

Deadly Bite

A high school volleyball player begins feeling fatigued and numbness in her arm. Soon after, she experiences double vision and loss of balance, making it clear she's suffering from something far more sinister than a sports injury.

It's in Your Brain

Doctors and the CDC spend months investigating what links two honeymooners in California, a surfer in Hawaii and a toddler in Tennessee.

Fatal Inheritance

When Dr. Bill Linder collapses in his home hours after returning from a family trip, it's only the first sign that something is wrong.

Miracle Dog

Scientists tell Paul and Alison Frase that treating their child's rare disorder depends on finding a dog with the right genetic code.

Forgotten but Fatal

A college student in Florida and an EMT in Michigan both come down with sore throats. What seems like a common cold soon spirals into something more serious.

When You Die

Throughout human civilization, dreams and visions of death have been commonplace. Now, experts look at the science and possible meanings behind them.