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Brains and Alan visit the Quantum Research Center, adjacent to New Geneva in Switzerland, to see the Supreme Hadron Collider switched on. Disaster strikes when the collider is switched on, creating a gravity well. A satellite is sucked down into downtown New Geneva, and International Rescue is mobilised when an aircraft and the World Wide Space Station are drawn into the gravity well, threatening the city. The only craft that can withstand the gravitational pressure is Thunderbird 4, used out of its normal undersea environment.
Episodes
1Ring of Fire (1) 2Ring of Fire (2) 3Space Race 4Crosscut 5Fireflash 6Unplugged 7Runaway 8EOS 9Slingshot 10Tunnels of Time 11Skyhook 12Under Pressure 13Heavy Metal 14Falling Skies 15Relic 16Breakdown 17Heist Society 18Recharge 19Extraction 20The Hexpert 21Comet Chasers 22Designated Driver 23Chain Of Command 24Touch and Go 25Undercover 26Legacy