The quest for the final segment of the Key to Time brings the Doctor and his companions to Atrios. They soon discover that Atrios and its twin planet Zeos are in the midst of a nuclear war. On Atrios, the war is lead by the fanatical Marshal while, behind the scenes, Princess Astra attempts to find a peaceful resolution to the conflict. Meanwhile, on a mysterious third planet, the Shadow conspires to prolong the war and steal the Key to Time.
The Armageddon Factor is a decent story overall but it runs out of steam in the final episode. The conclusion to the Key to Time arc is pretty lackluster and feels a little rushed.
The Armageddon Factor has plenty of interesting characters throughout though, including a Time Lord named Drax who shows up out of nowhere in the fifth episode.
Rating: Peace%