[Suddenly a shadow is cast across the vehicle. Baines sticks her head out of the door.] [A massive saw comes down, and the sonar vehicles get out of the way just in time. The ground beneath them begins to open.] [The vehicles skids and falls into the crack in the earth. Pan up to the Earthbreaker. Cut to control cabin - the Mechanic.] [Opening credits.] [Tracy Island.] [Everyone looks at him.] [Thunderbirds 1, 2, & S launch.] [Thunderbird 5.] [GDF Fliers surround the Earthbreaker.] [Crevice. The D103 crew wake up.] [They look out the window to see the Earthbreaker above them.] [Silence.] [Thunderbird 2.]