"Noose of Ice" is the 23rd episode of Captain Scarlet and the Mysterons, a British Supermarionation television series created by Gerry and Sylvia Anderson and filmed by their production company Century 21 Productions. Written by Peter Curran and David Williams and directed by Ken Turner, it was first broadcast on 12 March 1968 on ATV Midlands. In "Noose of Ice", the Mysterons target an undersea Arctic mine that is extracting a rare metal which is vital to the construction of a new Earth space fleet.