It's the first day of school after the summer break, and it starts off with a bang. Châu, Milli, Liv, Tom, and Pit find themselves in the school basement for various reasons. Suddenly, the fire alarm goes off, and the sprinkler system in the basement turns on. Five soaked students from class 6C sit in the principal's office in front of Principal Mrs. Kret. Since no one wants to take responsibility, and entering the basement without permission is prohibited anyway, the five of them are collectively punished.
