Sapphire & Steel: Wall of Darkness #3.4 - Big Finish Audio CD
All irregularities will be handled by the forces controlling each dimension. Transuranic, heavy elements may not be used where there is life. Medium atomic weights are available: Gold, Lead, Copper, Jet, Diamond, Radium, Sapphire, Silver and Steel. Sapphire and Steel have been assigned.
An abandoned shopping centre in the middle of the night. Is the journey at an end?
CAST: David Warner (Steel), Susannah Harker (Sapphire), Louise Jameson (Sally), Ian Hallard (Justin), Robert Maloney (Russell), Timothy Watson (Jason), Joannah Tincey (Miranda)