George and the Missing Puzzle Piece & D.W. Swims with the Fishes

George and the Missing Puzzle Piece: George meets a new friend named Carl, who has Asperger syndrome, a form of autism. George is unsure about how to act around his new friend, but Brain helps put autism in perspective for him so he can understand some of Carl's mannerisms.
D.W. Swims with the Fishes: D.W. and James enter the preschool swim meet and recruit their older siblings to coach them. It all goes well until Arthur and Molly begin to get more competitive than D.W. and James.