Season 1

An English tourist vanishes while sunbathing on Fraser Island, Australia. A month later, dingoes attack two boys, killing one of them. What is happening on this island down under?

In parts of Florida, alligators are surging from waterways and ambushing people. Join our team of biologists, trauma physicians, and detectives as they investigate this disturbing outbreak of violence and explore details of alligator behavior.

In India, Bengal tigers stalk men in forest and spring upon fishermen as they ride the rivers. One tiger even has a target inside one of the local villages. Why are these wild tigers killing human beings?

On Alaska's Kodiak Island, hunters and tourists are suddenly faced with what seem to be unusually aggressive bears.

Examining attacks by great white sharks on humans in waters near South Africa.

Exploring reasons why a single lion preyed on humans along the Rufiji River in southern Tanzania, killing 49 people between 2000 and 2002. During the killing spree he was dubbed “Osama.”

In Ecuador's remote Amazonian village of Jatun Molino, something is mysteriously attacking and killing people. Within one month, two adults and five children are dead. The two victims that make it to the hospital are found to have rabies. The analysis indicates that it is the type of rabies comes from vampire bats. Vampire bats are known to feed on livestock when jungle prey is scarce. Why would the shy nocturnal creatures suddenly be targeting human beings? An international team probes further into the tragedy that grips the Quichua community. A comparison to similar cases other South American countries provides possible reasons why vampires would be forced to turn their thirsty attention to people.

An enormous saltwater crocodile attacks a group of tourists in the Australian outback. Why were these people swimming at night in croc-inhabited waters? Eyewitness accounts and forensic evidence yield disturbing answers