Episode Title:Impact.Episode Description:Using a remote controlled rocket booster Langstrom Fischler tries to bring a comet into Earth's orbit so he can mine it. When the rocket doesn't fire the comet ends up on a collision course with both the Earth and Globe One, a GDF space station with Captain Ridley O'Bannon aboard. While Alan and Virgil take Thunderbird 3 up to the comet and find a way to destroy it John must use Thunderbird 5 to help O'Bannon move Globe One out of the comet's path.