S1, E13: Lt. Amidon is missing in Afghanistan. Her daughter, Phoebe, has been bullied by her friends in connection with her mother's disappearance. As Phoebe awaits her mother's return, a burnt-out letter arrives at the DLO, but it has something to do with Amidon's survival. Oliver and his team try to decipher the contents from the few clues they have.