Sapphire and Steel
What is Sapphire and Steel about (plot, summary)
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.
The series centres on a pair of inter-dimensional operatives: Sapphire and Steel. They are two of several Elements that assume human form to investigate strange events.
