Skewering the fifth segment of the Key to Time on a lance like seafood on a kebab, the Doctor and Romana find some very familiar struggles for power on a swamp moon.
Gwen embroils herself in a ghost story where the spirit is the one haunted by the living, and the rest of the team effectively takes a week off.
Pointing a few hands’ worth of fingers at various impostors (both organic and cybernetic), the Doctor and Romana get waylaid by a problematic regency dispute while making off with the fourth piece of the Key to Time.
Sporting a “risen mitten” and a “life knife”, the Torchwood team revives a traitor from their past to do…well, exactly what you’d expect a traitor to do: betray.
The Fourth Doctor and Romana get far more than they bargained for in the pursuit of the third segment of the Key to Time: namely, a court-ordered execution.