But Gafotas and his friends didn ' t care much about that and went to Mars despite the warning. Then, Romeo fixed the spaceship because he was a professional engineer. As they were flying back to the Earth, the engine suddenly went out. They realised there was no fuel and they landed on a planet that had so many holes that you could refuel the spaceships. So, they refuelled and continued with the trip. Later on, they landed on the Earth and looked for the villain.