When Dad’s baseball team, the Tigers, are playing a game at the park, Caillou, Rosie and Mom, go to cheer him on. However, Caillou gets restless. He wants to participate too. Although he’s too little to go up and bat, he becomes part of the team as the water boy and does a great job. When Dad’s game is over, they take out Caillou’s toy baseball gear and have a baseball game of their own. (thetvdb.com)