The “Transbalt“ vessel is to deliver a cargo of salt to Far Eastern fishermen who have made increased commitments. The crew makes a counter-commitment to provide the fishermen with salt ahead of schedule. But on the way to Vladivostok, one of the ship's boilers explodes. A storm begins. Overcoming incredible difficulties, the crew completes the task. 

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.