Emilia and the ninjas plan to go on a trip to the game park on Saturday. But the day falls on a private concert, of all things, in which Max is to play Ravel's Bolero together with Barenboim. When Max cancels his plans with his friends, Max and Leon are furious. Only when he sends them a self-made track via mobile phone do they forgive their friend. Max claims that he wants to retire to finish the track in peace. But in reality he is preparing the concert that the maestro is to give to his old piano teacher, who is in town at the moment.