The film recreates the heroic epic of the defense of Sevastopol in 1941-1942. The fall of 1941. Having broken through the defense at Perekop and seized Crimea, the fascist troops begin the siege of Sevastopol. The Soviet fleet is withdrawn to Novorossiysk. For the defense of Sevastopol remained only guns of ships, coastal batteries and several detachments of marines, the defense is led by General Petrov.