BJ, Baby Bop and Riff can hardly wait for the petting farm to come to the park. Barney helps them pass the time by teaching them about the days of the week. When the farm petting animals finally arrive, everyone realizes that it was worth the wait! Riff feels terrible when he accidentally wrecks BJ's beloved scooter! Riff and Baby Bop decide to have a sale in the park to raise money to buy BJ a new scooter.