Based on

Movies like Drop-out (1969)

A group of Amsterdam schoolchildren travel through the Netherlands in a wildly painted van. The aim of their journey is to preach rebellion against the education system. With rather vague arguments, they try to persuade other students to go on strike. When this seems to work, the teachers set up the 'Association of Concerned Teachers'. This association will try to sabotage the bus in every possible way. The result is a boomerang effect...