The movie starts with a green, glowing meteorite zooming through space. It quickly gains speed, and passes by Kang and Kodos' ship, waking both of them up. They report it to their superiors on Rigel IV, and Commander Grander asks if it was glowing green. Kang and Kodos say it was glowing green, and Commander Grander tells them that it contains high ammounts of Spacetanium, which is the special type of energy they need to power the Rigel V Space Station. Meanwhile, on Earth, the meteorite speeds through Earth's atmosphere and arrives in Springfield, a small city in the United States of America. It crashes through the roof of Bart Simpson's treehouse, and lands on the floor. The radiation from it begins to spread through the area, affecting the citizens of Springfield as they sleep. The next