Frank (Ray Winstone) is confined to a residential home, suffering from Alzheimer's with his past, present, and future slowly breaking down. One day, a young man named James (Jim Sturgess) visits, wanting to reconnect with a father who no longer remembers him. James breaks Frank out of the home and the pair go on the run together. As their spontaneous journey unfolds, the present combines with incomplete memories of the past, fact mixes with fiction, and it becomes apparent that nothing is quite what it seems.