With a second nuclear explosion inevitable and rescue by the wind unlikely, Wade realises that the consequences for the region will be devastating. He calls International Rescue for help and Jeff Tracy (voiced by Peter Dyneley) dispatches Scott (voiced by Shane Rimmer) in "Thunderbird 1". Lady Penelope (voiced by Sylvia Anderson), who is visiting Tracy Island with Parker (voiced by David Graham) and is eager to accompany the Tracy brothers on a mission, leaves with Virgil and Gordon (voiced by David Holliday and David Graham) in "Thunderbird 2" carrying Pod 4.