A group of Russian partisans hiding within a remote forest attempt to destroy a nearby German airfield, all the while assisting a downed French pilot who happens to fall madly in love with a local girl.

A Soviet cruise ship "Evgeni Onegin" is carrying cages with tigers and lions for a Soviet Circus. One loose monkey unlocks all cages, letting the tigers and lions out. Poor passengers and crew have no place to run. The captain abandons his post out of fear, and the monkey takes over the captain's post. The ship gets under total control by the tigers and lions. Only one lady is standing up to the challenge. Her name is Marianna, she loves animals, and she takes the situation under control.

People living at a seashore town are frightened by reports of an unknown creature called "the sea devil". Nobody knows what it is, but it's really the son of doctor Salvator. The doctor performed surgery on his son and now young Ichtiander can live under water. This gives him certain advantages, but also creates a lot of problems.