The capital city of Salo-Nyam-Landia is preparing for a great knight's tournament. Prince Radiant has announced that he will give his daughter Rodinka to the best of the best. Overseas suitors: Mai-Son nicknamed Tusha, Master Fu Zhek Kachan and Baron Shkvarkonigero prepare for battle with the brave bogatyr Pyatibor, son of Chernomor, who is in love with Rodinka. At the same time, the terrible alien Trinog arrives in Salo-Nyam-Landia from the planet Mutan, and the underground king Patogen the 12th is looking for a way to the surface. It is not hard to guess that incredible adventures await the inhabitants of Salo-Nyam-Landia....