Injured from their latest battle, the brothers decide to return to Risembool for repairs. They make plans to meet up with Winry, but along the way a mixup occurs and Al vanishes from one of the train stations. Now Al must make a detour to find him, and in the process question his deepest held belief.
Jake's nanites go on the fritz, leaving an amnesiac Jake working in a dive bar outside Philly as a fighter in a back-room blood sport. The NSA believes Jake has gone rogue, and issues a shoot-to-kill order. So Diane takes it upon herself to try and help him. But as Jake and Diane grow closer, Jake's boss Caeser lines up a bank job, and the NSA are closing in.
A management training exercise for Lara, Simon and Harry leaves them trapped in a cave as the death of a child leaves Comfort breaking down and turning to drink.