The Catacombs Episode Guide

The Dorcons

The Immunity Syndrome Year 2 - Episode 24

Writer Johnny Byrne
Director Tom Clegg
Guest Stars Patrick Troughton, Ann Firbank, Gerry Sundquist
Original Title Return Of The Dorcons
Belgium (Flemish) De Dorcons
Spain Los Dorkons The Dorkons
France/Canada Les Dorcons The Dorcons
Italy I Dorconiani
Japan Maya! Forever is here, ALPHA...
Portugal Os Dorcons The Dorcons

The Dorcons -the most powerful race in the galaxy -demand that the Alphans hand Maya over to them. Koenig refuses, until Moonbase Alpha is savagely attacked and invaded! Then, having let them take Maya he makes a desperate attempt to save her.... ITC summary


The Dorcons
behind the scenes


Int. Command Centre
Int. Alpha Corridor
Int. Alpha Corridor Outside Airlock 2
Int. Travel Tube
Int. Weapons Section
Int. Eagle Pilot Section

Int. Dorcon Stateroom
Int. Dorcon Operations Area
Int. Dorcon Corridor
Int. Dorcon Ventilation Duct
Int. Dorcon Transfer Room


The Dorcons The Dorcons The Dorcons



The Dorcons

The raw materials of the ship are: 'Carbon/ Hydrogen/ Argon/ Rebillum'. Carbon and hydrogen are the building blocks of organic chemicals. Argon is an inert gas. There is no such substance as Rebillum. Strangely there is no oxygen (for atmosphere) or any metals (iron, aluminium or titanium for the ship's structure).



2409 days after leaving Earth orbit (Tue 18 Apr 2006)

Alpha Personnel:

2 fatalities, Thompson, another pilot.

Alpha Technology:


Four combat Eagles incl. Eagle 4 are destroyed

Maya transformations:

Ape-lizard animal, Alphan girl, dove (partial transformation).

The Dorcons The Dorcons The Dorcons




Archon, Varda, Malic from planet Dorca

The Dorcons The Dorcons The Dorcons The Dorcons The Dorcons


The Dorcons

The Archon's throne was used as Arra's throne in Collision Course and Companion's bed in The Infernal Machine. His chair is a design normally seen in Alphan living quarters (the ribbon chair, designed by by Pierre Paulin). On either side of the throne are obelisks previously seen in A Matter Of Balance and Devil's Planet

The Dorcons The Dorcons



The Dorcons

As three of the four Eagles veer off, the two that fly to the right of the screen briefly merge.

The Dorcons The Dorcons

When the guards flee and the Alphans escape, Varda's body is on the floor. In the next scene, her body has disappeared. Thanks to Thomas.




The Dorcons

External Links

Contents copyright Martin Willey