The student rowing team of the Moscow Aviation Institute (MAI) was defeated in the competition. The coach drops the team and leaves, taking the best rowers with him. The remaining athletes decide to assemble a new team, and the management of the institute appoints a new coach for them — a teacher of hydrodynamics.

Princess Mariya fell in love with doctor Toporkov, who was treating her, in the recent past the serf of her family. Now he has become a celebrity and is only concerned about buying a new home profitably. He does not notice her love and marries a rich merchant. The princess in love comes to see Toporkov and opens to him. Her strong feeling touches Toporkov’s hardened heart, he leaves his wife and leaves the princess abroad.