A famous french actor is poisoned and dies right in the middle of a play. Martin, an actor friend, is soon suspected by the police while being hunted by the mysterious organization which ordered the murder.
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.