Erin Greene is walking home from a Halloween party in a small arctic town when a polar bear chases her down. Triathlete Chuck Anderson is swimming in the Gulf of Mexico when a bull shark attacks, biting his arm & pulling him down.

Joe Azzouggagh & his German Shepherd, Ace, are deep in the Ontario wilderness when a black bear charges them. Single dad Andrew Dickehage is forced to walk 6 miles along a rural road at night, where he's attacked by unseen predators.