Season 1

1 :01x01 - The Every Day Turns Devastating

Explores the efforts of doctors and scientist as they try to locate the source of deadly pathogens and stop them spreading.

2 :01x02 - Fatal Infestations

The episode follows the CDC who work with the military ad veterinarians to find out the source of a disease that's affecting humans and animals in New York.

3 :01x03 - Deadly Animals Among Us

Recipients of organs from the same donor show some manic behavior and then become comatized. A potential smallpox outbreak in the Midwest is looked at.

4 :01x04 - Blood Sport

Violent flu-like symptoms strike down men in the college town of Fort Collins, Colorado. Then, an elderly woman who just returned from China is rushed to a Northern Virginia hospital. Has this woman brought a terrifying disease to US soil?

Source: Animal Planet

5 :01x05 - Terrorist Within

Hundreds of injured soldiers returning from the Middle East bring back incredibly powerful mutant bacteria. Also, the CDC is flooded with reports of severe illness in children across the country - an invisible assassin is on nationwide killing spree.

Source: Animal Planet

6 :01x06 - Valley of Death

After a huge earthquake hits California, a deadly fever is spreading quickly, and it's likely caused by a fungus released by the earthquake. Then in another story, a horrendous bacterial outbreak forces one of the largest food recalls in U.S. history.

Source: Animal Planet