The Sedov training sailing ship at the pier of Kronstadt. A team of cadets of the Frunze Higher Naval School in the ranks. Admiral Boykov welcomes the sailors. Raising the flag. Ship on the high seas. The ropes are removed, the sails are raised. Lieutenant Ravzin and the cadet make a navigation pad. Ship instruments. Lieutenant-Commander Dolinn explains to the cadets the route and objectives of the campaign: the English Channel, then north to the shores of England and Scotland, around the British Isles, past Scandinavia. Cadets are engaged with sextants. Navigation classes. Coast of Denmark. Lighthouse. Coast of Great Britain. Faroe islands. Scottish Islands. Foreign ships are passing by. Fog on the sea. Cadets during dinner, playing the accordion; read, shave, wash the deck of the ship. Warships in the roadstead.