The beast king Leo Noble hosts an Ascension party. Only the rogue Fox dared not appear at the royal feast. The wolf Isengrin submits a complaint to the lion against Fox, his old enemy: the fraudster raped the wolf’s wife Gryzentu. Noble arranges a trial. He decides to give Fox a chance to improve and, instead of cruel punishment, orders Isengrin to conclude a peace treaty with Fox.
At this moment, the animals see a funeral procession: a rooster and hens carry a chicken torn by a Fox on a stretcher. They fall at Noble's feet, begging him to punish the villain. An angry lion orders the bear Biryuk to find the Fox and deliver it to the palace. But the cunning rogue manages to circle him around his finger: he lures a honey lover to a bee hive, and a clumsy Biryuk gets stuck in an oak hollow. Forester, seeing a bear, convenes people. Barely alive, clogged with sticks, the poor fellow returns to Noble. The lion is angry. He instructs the cat Tiber to deliver the villain. Without daring to disobey the order of the lord, he goes to the Fox. He decides to lure the criminal into the palace by cunning and flattering speeches. But this time, too, the agile sneak inflates the royal messenger. He offers him to go hunting together - to the barn to the priest, where there are many mice, and to the chicken coop. The cat falls into a trap.
An angry lion decides to go to war on the criminal. The animals go camping. Approaching the fortress where the Fox disappeared, they understand that it is not so easy to overcome the stone walls. But, seized with a thirst for revenge, the animals still camp around the castle. They stormed the fortress for days, but all their efforts are in vain.
The animals, having lost all hope of taking the fortress, go to bed. The fox, meanwhile, slowly got out of the castle and decides to take revenge on his enemies. He ties the tails and paws of sleeping trees to the trunks of the trees and lies side by side to the queen. Waking up, a frightened lioness raises a cry. The animals, upon seeing the Fox, try to rise, but cannot budge. Slug Slow, deciding to free everyone, ragingly chopping their tails and legs. The fox is ready to run away, but at the last moment Lazy manages to grab the scoundrel. Finally, the Fox is captivated.
Noble makes a cruel, but fair sentence - to execute a liar and a villain. The wife and sons of Fox, having learned that he faces imminent death, beg the Vladyka to have mercy on the criminal, offering in return a rich ransom. In the end, the lion agrees to forgive the Fox, but on condition that he leaves his impudent tricks. The happy Fox is hiding as soon as a rope is removed from his neck. But it turns out that in the crush and confusion Fox committed another crime - crushed a mouse. And his trace has already caught a cold. Noble orders everyone who sees the criminal, without waiting for the trial, to deal with him on the spot.
Hard times have come for the Fox, He is forced to wander, hiding from everyone. It was not so easy to earn a living. But cunning and ingenuity still help him out. Either he succeeds in flattering speeches to lure a piece of cheese from the raven, then he puffs fishermen returning home with a rich catch. This time, the Fox pretends to be dead, and simpletons put him in a wagon. Meanwhile, the sneak is filling his belly to the full, and even grabbing some of the booty with him. His household members rejoiced!
Meanwhile, Isengrin, prowling in search of edible, comes to the house of Fox. Smelling the smell of fried fish, he, forgetting about the mortal feud with the Fox and all his crimes, asks to feed him. But the sly man tells the wolf that dinner is for the monks, and they accept everyone who they want into their community. Hungry Isengrin expresses a desire to join the Tyrone order. The fox assures the wolf that for this it is necessary to cut out the tonus. He tells him to stick his head into the door slot and pour boiling water over it. When the wolf, exhausted by these tortures, reminds him that he promised to feed him, the Fox offers Isengrin to catch fish for himself. He takes him to a frozen pond, ties a bucket to his tail and tells him to lower him into the hole. When the ice freezes and the wolf is no longer able to move, people gather to the pond. Seeing the wolf, they with sticks attack him. Left without a tail, Isengrin barely blows his legs.
The animal king Noble suddenly becomes ill with a serious illness. Famous healers flock to him from all over the world, but not one of them can help the lion. Badger Greenber, who is the cousin of Fox, convinces him that the only way to earn forgiveness and obtain the favor of the king is to heal him. Gathering healing herbs in a wonderful garden and robbing a sleeping pilgrim, he appears before Noble. The king is angry that the impudent Fox dared to appear before his eyes; but he explains to Noble the purpose of his visit. He says that to heal a sick person, the skin of a wolf, deer antlers and cat hair will be required. The king orders the servants to fulfill his request. The fox rejoices: Isengrin, the deer and the cat Tiber - his old enemies and offenders - are now disgraced forever. With the help of potions prepared by the Fox, the king is recovering. The cunning man finally wins the king’s love.
Leo goes to war with the Gentiles. He instructs Fox to guard the palace and appoints him his viceroy. Taking advantage of the absence of Noble, he seduces his wife and lives, not denying himself anything. Soon, an insidious plan matures: he persuades the messenger to announce to the beasts that the lion has died on the battlefield. The messenger reads to the beasts the king’s testament, concocted by the fraudster Lys: after the death of the lion, the throne should pass to the Lys, and the widow of Noble will become the wife of the newly made king. Sorrow over the deceased emperor is replaced by joy: no one wants to quarrel with the new king.
Soon, the lion returns home with victory. He storms the castle and captures the traitor. Chauntecleer’s rooster attacks the impostor, but he pretends to be dead and is thrown into a ditch. Crows flock to the carrion, but they can’t feast on them: the Fox opens one of their paws and runs away. The crows complain to the king, and he sends Badger Greenber to the Fox. Wanting to help out a cousin, Greenber returns and tells Noble that this time the Fox actually died, although he was safe and sound. The animals rejoice, only the lion is disappointed and saddened by the unexpected death of the enemy.
