The forest man, Kondrat, tells the boys about a she-wolf with a young litter. They sneak into the lair. The she-wolf sets off in pursuit of her pups. Bierniuka falls into the swamp. He is rescued by Kondrat. He punishes him for taking all the wolf pups. Bierniuka names his wolfdog Dzikun. The poacher Mohila takes him away, and the wolf girl wishing to claim her pup is killed. Dzikun, however, manages to escape. After some time he eats the poisoned meat scattered by Mohila. Bierniuce and Kondrat manage to rescue Dzikun. Mohila and his companion make an ambush for the wolves, but they attack. Thin ice on the pond breaks under the companion, a young wolfdog is thrown at Mohila. Bierniuka recognizes Dzikun in him.