 Caillou gets a special invitation to go to Andre s gym class. A little intimidated at first, Caillou tries his best and ends up having great fun. When they make a rhythmic coordination exercise, Caillou discovers that not everything is easy! Caillou finds the leap-frog exercise difficult but he keeps trying and finally succeeds. Back home, André and Caillou play gym class and when Caillou finds a toy whistle, it s his turn to be the gym teacher!