The War with Grandpa (2020)

Retired Ed fought a supermarket guard, after which, on the advice of the police, his daughter transported him to his family's house. He himself is not happy with the move, and his 12-year-old nephew Peter is simply angry because his grandfather received his favorite room and the guy himself was moved to the attic. Not wanting to bear this blatant injustice and without thinking about the consequences, the boy declares war on his grandfather. But a pensioner turns out not to be so simple, because he is in a real war and, like an old soldier, he is ready to suffer losses.