The Vityaz sailing corvette, whose team has to endure severe trials, goes on a flight. Relations between the sailors and the stupid and soulless baron von Berg replacing the senior officer did not develop. By his behavior, he causes the hatred of the whole crew, which develops into a riot when he gives the order to drown the darling of the whole team - a little puppy. All this, as well as a storm in the Pacific Ocean and other dangerous adventures, rally people even more and make them even stronger and more courageous.