Trapped

Quint has an important delivery to make in a city on the other side of the mountains. He makes the same delivery every week, but this week he decides to change things up a little bit by taking the scenic route. The trip starts out great: new sights to see on a nearly deserted highway. And then the ground begins to shake.
With only a bit of gas left in his tank, Quint pulls up to a pile of rocks blocking the highway: a rockslide. Parked in front of the rocks are three girls and a camper. Low on gas, Quint asks for a ride back to the last town. They all pile into the girls’ truck, and then find another rockslide ten minutes back in the other direction. They’re stuck, and they’re going to be stuck for a few days.
The girls are willing to share their food and their camper, as long as Quint doesn’t mind being shared himself—and as long as he doesn’t mind the fact that the three girls used to be boys.