Charles Macaulay

While investigating the disappearance of the USS Archon on the planet Beta III, Kirk and his crew encounter an old-style Western community brainwashed and subservient to a sinister godlike figure called Landru.

Victorian England meets futuristic space travel when three women on the planet Argelius are apparently murdered by Jack the Ripper - in the form of the Enterprise's chief engineer. With Scotty in the dock, the crew of the Enterprise find their own lives are at risk from an evil being feeding on the epidemic of fear and panic.

A newspaper columnist warns that an art theft will endanger Ironside's life.