A man stuck on a bridge in bumper-to-bumper traffic on the way to see his kids for the weekend is suddenly transported back in time with 30 other cars. Confused and lost, he and the group try to figure out what happened and how to get back.  However, as they interact with people in that timeline, it attracts a force of police like soldiers that have one mission, save the timeline at all costs. The cost is high and one of the travelers holds a dark secret.