Under the Rainbow Rudi and Trudi are flying through the sky when rain starts to fall. Rudi flies on as fast as he can. In the distance the sun is shining through the rain and Rudi spots a rainbow. Rudi goes through the rainbow and on to the other side where he finds a world without colour. Rudi and Trudi find a little girl and a little boy hiding behind a rock. They introduce themselves as Mono and Chrome. Rudi can't understand why they are black and white and tells them all about a world with colour. Mono and Chrome get very upset that they don't have any colours in their world.