On family trip to the Canadian wilderness, 12-year-old Zac Delventhal is dragged from his sleeping bag by a hungry wolf; while swimming in the Pacific Ocean, Maria Korcsmaros is attacked by a great white shark.

While working in the Canadian wilderness, Louie van Grootel is attacked by a massive grizzly bear; Travis Kauffman comes face to face with a hungry mountain lion while trail-running in Colorado.