The Ninjas have the unique chance to apply for the International Music Festival of Schools in Rio. But the competition never sleeps, and of course the T-Rex crew also wants to win the ticket to Brazil. A fierce competition breaks out. A problem the maestro can also sing a song about, because his two solo pianists, whom he is teaching for a performance at a peace festival, are two full-blown squabblers. So Maestro Barenboim tries to reconcile the two with a gesture of peace. And since school director Ångström threatens to exclude both the ninjas and the T-Rex crew from the competition if the disputes are not settled, Max also has an interest in making peace.