After his wolfdog Hailong sacrifices himself and saves his family from an explosive trap, Erlin takes Hailong's pups to the army so that they can be trained as military dogs to fight the Japanese.
Xu Yuenan, who grew up in a celebrity family, pledged to take revenge for her father. Finally, she found where her enemy was and killed him—- a powerful warlord who gave in to the Japanese invaders at a small Buddhist hall.
It is a story about the Chinese police who intelligently and bravely fight with the cooperation of the factory's Party Committee and the masses, against the spies, who steal the navy's equipment "Hunting No.99".
