Young Pepík Bureš is growing up in the zoo where his mother works as an attendant. Pepík grows fond of the bear known as Brumla and, together with his elder brother Zdeněk and friend Vojta, they offer to help the bear-keeper Kaláb with his work. One day a group of Vietnamese children visit the zoo and bring with them a gift - a baby elephant. In return, they are to take Brumla back with them. Pepík cannot part with the little bear and decides to hide it. He flees the zoo taking Brumla with him, however, the little bear gets up to all sorts of trouble and keeps running away from Pepík. In the end the boy realizes that this was not a good idea and he brings Brumla back. At the party organized for the Vietnamese children he, himself, hands over Brumla to the little girl Zue. The little elephant brought over by the Vietnamese children is named after Pepík who now has a new friend.
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