S2, E9: Burt encourages Jimmy to be more of a daredevil. So when Jimmy’s co-worker, Frank, invites him to a house party, Jimmy jumps at the chance to unleash his bolder side. As Jimmy and his new pal spend more time together, they discover they shared a common high school bully. In a series of flashbacks, Jimmy and Frank look back at their unhappy high school years as Young Jimmy (guest star Greyson Chance) and Young Frank. But when the two try to take down their old nemesis, they’re surprised to learn that the bully has changed.