Eighteen year old boy Brennan, and seventeen year old girl Olivia, have their entire lives and world view changed when they commit suicide on the same day. In this world, the dead are brought to a train station where they receive tickets that either send them to heaven or hell, but Olivia and Brennan are given a second chance. An angel gives them train tickets that will send them back to their bodies, but a new problem emerges when they accidentally switch their tickets. In the world of the living they wake up in each others bodies, and are now forced to undo the mistake they just made while living the other person's life.