When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV to a nearby gas station. Along the way, they encounter an increasingly terrifying horde of parasites, and if any of them intend to survive, they'll have to outsmart the deadly organisms.

The middle-class couple Linda Hanson and Jim Hanson live a wasted and routine relationship with their two daughters in their comfortable house in the suburbs. On a Thursday morning, the local sheriff visits Linda and tells her that her husband died in a car accident on the previous day. On the next morning, when Linda awakes, she finds Jim safe and sound at home. When she awakes on the next morning, she realizes that her days are out of order, but her family and friends believe she is insane. Written by Claudio Carvalho, Rio de Janeiro, Brazil