When the crew of an American tugboat boards an abandoned Russian research vessel, the alien life form aboard regards them as a virus which must be destroyed.

Many adventures befell a beautiful dog named Michael. He was stolen and sold many times, he lived with both kind and cruel owners, and even performed in the circus arena. And so, during his difficult wanderings, Michael falls into the hands of a lonely sailor, Doug, who, at the risk of losing his job, takes the dog with him.

Mavzik, an eccentric, retired Russian colonel, attempts to marry his sons off to "proper" girls of his choosing. But living in sunny and exotic South Florida, the two young men have other ideas. When they both unwittingly begin to date the same attractive girl-next-door, Mavzik's plans are thrown into chaos. At the same time, he must come to terms with becoming a US citizen.

The heroine informs both lovers about her pregnancy in order to determine by their reaction how serious the feelings of each of them are.