Thunderbirds/Recap/S1 E22 Brink of Disaster

When the new, fully-automated Pacific Monorail goes into action, it'll make its investors rich - provided it ever actually goes into action. Determined to find investors, the president of the corporation starts hunting around, starting with the well-known Lady Penelope Creighton-Ward. While Lady Penelope has no interest in the project, she directs the president to her friend Jeff Tracy.

Unbeknownst to Lady Penelope, the president had taken the opportunity to case her house - and disable the alarms - prior to calling in his more criminal friends. While the president takes Jeff, Tin Tin and Brains on a demonstration tour of the new monorail, the criminals break into Creighton Manor and the safe beneath the drawing room. While they succeed in removing Lady Penelope's famous jewelry, the safe's alarm system is on an independent circuit, and her ladyship and her loyal butler Parker are alerted to their presence. Armed with machine guns, they disable the criminals' getaway car, forcing them to hotwire the bright pink Rolls-Royce FAB 1. Sadly for the crooks, FAB 1 can be remotely controlled by Lady Penelope's bedside lamp. Leaving them to drive in circles around the fountain until morning, Lady Penelope and Parker retire to bed.

On the monorail, however, things are not going as smoothly. A storm drives a helijet into the support column of a bridge, severely damaging it. The automatic signalling equipment is damaged, and the onrushing monorail will not stop until it plunges into the abyss. The Thunderbirds race to the scene to save their family - while striving to retain their cover over the radio link.