On a fine summer day, a grandfather and his grandson go fishing. But the road to the river turned out to be broken, the bridge, which they barely drove across, is rotten, and the meadow near the river is completely covered with a thick layer of rock, which is brought here by huge dump trucks... Returning back, the grandfather’s car falls into a trap: dump trucks have piled up a heap on the narrow road rocks, but they forgot to level it, and the car could not be turned around in this place. Dusk is gathering...For primary school age.