A long, long time ago, a primitive man encounters a space creature in a unique intertemporal clash. In Rolling Cart, a boy faces the steepest hill in the neighborhood – will it be too dangerous? The goal is to visit his cousin Ângela, but the journey and its mishaps become the real adventure, as Mrs. Armitage on Wheels and the dog Breakspear invent a one-of-a-kind bicycle. Two workers climb a staircase carrying a huge piano, showing that sometimes challenges spark creativity, as we see in Duet.