A group of sleepless men should be taken into sanitarium for insomnia therapy. They are taken to a lonely island but no sanitarium is in sight. It turns out that the nurses have kidnapped the men and are about to give them the only useful medicine they need - fresh air and work. But the patients decide to disobey. There's only one solution - to escape.

Ülo and Olev think the German occupation is humiliating and the soldiers are arrogant. But even among Estonians there are people who cannot be trusted - this can have fatal consequences. Witty schoolboys find out that Mr Velirand, who has moved in the apartment that once belonged to their teacher, is a henchman of Fascists. The boys make up their minds to give people warning about the provocator, even if the rebellion is risky and their opponent superior, as it had been in the St George's Night Uprising in 1343.