After suffering an injury during a routine patrol, hardened sergeant T.K. Poole (Michael Peņa) is granted a one-month leave to visit his fiance. But when an unexpected blackout cancels all flights out of New York, T.K. agrees to share a ride to Pittsburgh with two similarly stranded servicemen: Cheever (Tim Robbins), an older family man who longs to return to his wife in St. Louis, and Colee (Rachel McAdams), a naive private who's pinned her hopes on connecting with a dead fellow soldier's family. What begins as a short trip unexpectedly evolves into a longer journey. Forced to grapple with old relationships, broken hopes and a country divided over the war, T.K., Cheever and Colee discover that home is not quite what they remembered, and that the unlikely companionship they've found might be what matters the most.