Watch over 9 minutes of bonus content to see Liam Neeson training for his action sequences in Berlin, and learn more about each of the characters. Dr. Martin Harris (Liam Neeson) awakens after a car accident in Berlin to discover that his wife (January Jones) suddenly doesn't recognize him and another man (Aidan Quinn) has assumed his identity. Ignored by disbelieving authorities and hunted by assassins, he finds himself alone, tired, and on the run. Martin seeks aid from a reluctant source (Diane Kruger) as he plunges into a mystery that will force him to question his sanity, his identity, and how far he's willing to go to uncover the truth.