Schoolboy Vasya and his little sister Klasha live on the shore of a picturesque lake, in which trout are bred. With the help of their friends, the dogs of the Quiver and the horse Strelka, the guys detain the poachers.
Twenty years ago, Nastya Samokurova left the village in the city to seek happiness. Lived in the city, easy, easy life, engaged in speculation. And now she came to visit her sister Dasha, who continued to live in the collective farm and was universally respected.
The old fisherman Vechora has lived all his life in his native village, everything here is familiar and dear to him. He invested his labor into this land and defended it from enemies in difficult times.
