The year is 1936, the nervous atmosphere of the Nazi threat penetrates into the sport. Upgrade boxe Vilda Jakub will compete with German Kurt Schaller. The Nazis decisions are used in order to win his master even the dirtiest means. Vilda inspect their game and focus on the preparation of environmental events. The story culminates in the victory of one of the two lovers, between which Vilda tense moments in the decision.
The 11-year old Jakub is living in a children's home, when he is picked up by his father. The father has been "away" for four years, the boys mother doesn't want the child. Jakub gradually finds out, that his father is hiding a secret from him. But they gradually manage to build a warm relationship and a promising new life in the city.
The bank officer Bedrich Hroch is sent by the bank director to the zoo, which asked an allocation of one and half kg of gold for a gold tooth for a hippo. During the check up of the hippo's teeth Bedrich is swallowed by the hippo. The man does not die in the hippo's guts and he chats quite happily with his frightened wife Dása. Journalist Pip Karen, his friend is also present to the dialogue and he has immediately an idea how to use this special situation. He tells to the new minister Borovec and his opponent professor Fibinger that there is a hippo in the zoo which can speak. He also tells them how to use this situation for a political propaganda.
A boy dreams of winning an ice hockey game. Meanwhile, a professional hockey star moves into the neighborhood, offering his services as a goalkeeper--leading two rival teams of Prague schoolboys, The Little Lions and The Devil Street Boys, to fall over themselves in order to gain his favor. The goalie's son, basking in his father's glory, is asked to replace a member of the Lions team, prompting the usual boyish rivalries and battles. Some of the Lions players are so preoccupied with the impending "big game" that their schoolwork suffers, to the chagrin of their teachers and parents.