The War with Grandpa plot
"Old school vs new cool"
10-year-old Peter is delighted to hear that his grandfather, whose wife has just passed away, is coming to live with him. There is, however, one major drawback: Grandpa has difficulty walking and cannot stay in the guest room, because it is in the attic. Grandpa will now sleep in Peter's room and the boy is driven to the attic. And so Peter decides to declare war on his grandfather by burdening him with irritating stratagems. Unfortunately for Peter, Grandpa also turns out to be an adept prankster, who does not let himself be messed with without a fight.