[Slow Spanish guitar music plays over a desert area containing a bridge. A red sports car revs up and drives away. Cuts to Alan and Grandma Tracy on one of the bridge's beams.] [Title Card appears:] [Alan brings his wrist watch up close, ever so slowly.] [Scene cuts to Tracy Villa Lounge. Alan's portrait beeps and Jeff Tracy presses a button to his left.] [Scene cuts to a leisure room where Scott and Virgil Tracy are playing pool. An alarm buzzes.] Brains: "Right, Virgil." [Thunderbirds 1 and 2 blast off. Cuts to Jeff's office.] [Cuts back to San Miguel bridge.] [Grandma suddenly passes out.] Part Two