A story about twin brothers from a family of hereditary military sailors. Their father, a brave sea captain, dreams that his sons graduate from the legendary Nakhimov school and continue the family dynasty in the navy. However, the guys themselves do not think about the sea service at all. Like most teenagers today, all they want is fun and easy money. These desires lead the heroes to the gang of the local "leader" of youth, from which it will be extremely difficult for them to get out without the support of their native school.
Vasily Pronchishchev and Vasily Chelyuskin were young lieutenants of the Russia fleet, who set out from Yakutsk along the Lena River to the Arctic Ocean on a sailing ship under the leadership of the commander Vitus Bering in the summer of 1735. Contrary to the imperial prohibition, incredible trials and deadly danger lying ahead of all the members of this expedition, a young girl enamored with one of the characters got onto this ship. However, neither storms or severe northern frosts and hunger were able to stop them, since fulfilling of their duty, reaching of the most northeastern point of Eurasia and putting of the vast Arctic territories on the world maps were their main purpose in life.