It's just a fender-bender on a country road, but now a group of strangers - including a bickering bridal party, an embittered father and son, selfish married urban couple, a pair of not-too-bright thieves, a divorced dad (Jefferey Dean Morgan) and a lesbian couple (Gina Torres) about to give birth in an RV - will spend one unforgettable afternoon turning each other's worlds upside down.