Castle Einstein (1998) : 28x26

On the last day of school, the Einstein students are determined not to let the party go to waste, despite the recent events. But the band cancels their performance after an argument. Hugo isn't even allowed to attend, and even bundle of energy Karl can't manage to cheer everyone up. As the curfew approaches, the Einsteins try to change Mr. Berger and Hugo's mother's minds. Can the evening still be salvaged?