The Adventures of Peter and Wolf Season 2 Episode 21 The Great Guardian Case

Peter's Grandpa has completely forgotten where he put his senior citizen ID. The family wants to help, so they send him to a hypnotist. After the session, however, Grandpa Nikolay remembers something entirely different. It turns out that he is no Grandpa but the Great Guardian, Syunter Formilgard, under cover, and his mission is to protect a magical artifact from villains.