Thunderbirds Are Go! Season 3 Episode 16 - Chain Reaction Episode Title:Chain Reaction.Episode Description:A young GDF officer gets trapped inside a lift shaft in Shackleton, a haunted nuclear power station that was abandoned after a meltdown. Scott takes Thunderbird 1 in to assist, along with help from GDF Lieutenant and nuclear expert Marion Van-Arkel. They soon discover that Fuse is trying to steal uranium but when he puts himself in mortal danger, Scott has no choice but to rescue him. Fuse escapes just in time but the power plant goes into lock down, trapping Scott and the GDF officers inside along with the Shackleton Beast!