AMOS receives a surprise visit from GRANDPA as he recently returned from a trip to China. Amos convinces Grandpa to join him in swim practice and teach MICHAEL, the bully, a lesson. But Grandpa turns out to be friends with COACH, and even tasks to oversee the boys’ training for a looming competition. To make matters worse, Grandpa grows impressed with MICHAEL’s commitment to training. With Grandpa now on Michael’s side, Amos’ plan has completely backfired. What can Amos possibly do to sabotage Michael?