Jan Kurčík

The owner of a circus decides to swap his trained bears for trained pigs, and fires clown Cibulka. The clown gets a job at a local school, bears escape and seek him out and a school inspector comes into town.

When Clown Ferdinand enters an abandoned city in his wagon he ends up on a space rocket where he meets a robot that can turn invisible. This film reuses sets from Polák's Ikarie XB 1 (1963).