The movie Cabin Fever tells the story of a group of friends, including Jack, Sara, Adam, and others, who go on a hunting trip to a remote cabin in the woods. However, their trip takes a dark turn when they discover that the cabin's caretaker, Forest Ranger, may be infected with a mysterious disease. As the group tries to survive and find a way out, they begin to suspect that one of their own may be infected, leading to a series of gruesome and terrifying events.