On the night of their senior prom, Lucy and her once-close childhood friends -- Kit and Mimi -- reunite to dig up a time capsule they buried together as little girls. Mimi's wants to make good on her childhood dreams; leaving their small town for fame and fortune in Los Angeles. Though Lucy and Kit are reluctant to join her, they decide to tag along, agreeing to be chauffeured by Mimi's friend, Ben. As they trek across the country, plagued by car problems, unsanitary motels, and petty bickering, the three friends reveal meaningful secrets to each other.