The last part of the trilogy about the rural adventures of Traktorka Florka.

The future of the farm where Florek lives is threatened. The nearby mountain stops the sunlight, which means that plants on parts of farmland cease to grow. You need to find a solution. Florek and his friends find a crazy solution: you need to build a huge mirror that will direct the sun's rays to the cultivated field. Now all residents will have to work together to save the farm.