Pottan is going to a riding camp, but ends up at a recycling center where she is taken care of by the strange staff. One day Pottan finds out that the staff are building a space rocket.
For the sake of the family, Vyacheslav Lazarev left the big aviation. The usual routine of Lazarev and his son Kolya is disrupted by a small bear cub, huddled in the cockpit of one of the planes. Little Mansur - as Lazarev and the others called him - having escaped from poachers, becomes attached to Lazarev.