Security lapses seem to point to top civil servants suddenly falling in love and giving secrets to an enemy agent disguised as a char lady. Steed investigates, but first has to save Tara from killing herself out of unrequited love.

When a member of the International Disarmament Committee is stabbed with a swordstick on a foggy night, it looks like the Gaslight Ghoul, murderer of the 1890's, has set up in business again. Can Steed and Tara catch him before the committee is severely lacking in personnel?

When Steed takes prime witness Miranda Loxton to a safe house to protect her from Murder-International hitmen, Tara is kidnapped. She escapes to find herself in her worst nightmare. A booby-trap in Steed's apartment kills Mother and Tara may be the only one with the hidden knowledge of where Steed has gone.

Tara is kidnapped, and wakes to discover that it is 1915, and she is apparently called Pandora. Could this be because of the little matter of a dowry and a missing bride? Steed struggles to solve a very old mystery.

When a woman is found walking barefoot in a snowy field, complaining of a dead man who wasn't dead, Steed investigates the Happy Meadows funeral parlour, which doesn't seem to be keeping its clients down under. What connection could that business possibly have with Mystic Tours?