Carriers (2009)

A highly infectious virus has spread worldwide, killing most of the population. Brothers Brian and Danny, along with Brian’s girlfriend Bobby and Danny’s friend Kate, plot a trip to take shelter at Turtle Beach, the brothers’ childhood vacation home. To help them survive, they follow a set of rules created by Brian. On their way to the beach, the group encounter survivor Frank and his infected daughter Jodie, whose vehicle has run out of fuel. The four escape from Frank when he attacks them, but after their car breaks down, they are forced to help Frank and Jodie to use his vehicle. At Frank’s insistence, they travel to a nearby high school where a serum for the pandemic is rumored to have been developed.

Upon arriving, Frank, Brian, Danny, and Kate discover that the serum does not work and the last remaining doctor is preparing to euthanize a group of infected children and himself. Meanwhile, Bobby catches the virus from Jodie, which she hides from the others. Frank is later forced to bring Jodie to a portable toilet, giving Brian the opportunity to leave them behind and take their vehicle. The group stops at a hotel, unaware that it is occupied by armed survivalists. When the survivalists return, they force the women to accompany them until they uncover Bobby’s infection and order the group away. Brian subsequently forces Bobby to leave the group