In prison the night before his execution, republican preacher Hugh Peter prepares to be hanged, drawn and quartered for treason

The final segment of the Key to Time is at the heart of a devastating war between neighbouring planets Atrios and Zeos. The Fourth Doctor discovers that a sinister entity is manipulating events and the cost of obtaining the final segment may be more personal than he imagined.

An aging King invites disaster, when he abdicates to his corrupt, toadying daughters, and rejects his loving and honest one.