Bruno has built a rocket – and he is determined to fly into space and collect space debris. His friends are surprised when they look through the telescope: there really is a lot of rubbish floating around in space!
Someone accidentally presses the red start button and the rocket takes off with the three animals on board. A little later, they successfully land on the moon. It's impossible for them to collect all the rubbish they find, however, and their tank is almost empty. Luckily, they meet an alien and a robot who help them to build an incredible DIY rocket that will return them safely back to Earth.
