The hero of this film is a leopard named Léo80M. The young leopard, host of the taiga of Ussuri, a wild animal sure of his strength and agility, falls into a trap set by poachers. Russian customs officers find this leopard exhausted and very thin. One of its legs is badly damaged. Specialists and vets are trying to save him. During the film we see how the specialists prepare the leopard for the return to the wild and little by little restore its hunter reflexes. It is the start of a new chapter in the life of our hero.