Ivan Kondov, Stefan Pejchev, Konstantin Kotsev, Ivan Andonov, Naicho Petrov, Rumyana Chokoyska, Dimitar Peshev, Gani Staykov, Eki Karagyozov, Kiril Bozev, Veliko Rosenski
In the 1920s several dozen political prisoners are exiled on a small island in the Black Sea awaiting sentencing. The old sea wolf and adventurer Kostadin (nicknamed Costa Rica) is planning an escape together with а carpenter named Zheko, an idealistic student and a doctor.