Season 4 (1981)
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Episodes 13
Traitor
The planet Helotrix is falling easily to attack from a new Federation pacification drug, as are many other star systems. Tarrant and Dayna teleport down to the surface to investigate. Servalan, deposed of her presidency in the Federation, is back under the alias Commissioner Sleer having wiped all records connecting herself with the identity of Servalan.
Read MoreStardrive
After attempts to match the course of an asteroid for cover result in collision with the asteroid and severe damage to Scorpio's engines, the crew search for an experimental stardrive developed by an ex-Federation designer who is now working for a terrorist group.
Read MoreHeadhunter
The crew rescue a protege of Ensor's who instead turns out to be his android creation seeking to unite with Orac.
Read MoreGames
The scientist Belkov has stripped a planet of a valuable crystalline substance and tries to double cross both Servalan and the Scorpio crew in an attempt to escape with the private stash he has collected. He is aided by his computer, an amalgamation of a standard Federation computer and a pleasure planet gaming machine.
Read MoreBlake
After Orac traces Blake's trail to the planet Gauda Prime, Avon and crew travel there, leaving the destroyed Xenon base behind. Scorpio is attacked on approach to the planet and crash lands on the surface of Gauda Prime. Avon and crew travel in search of Blake, and discover that he may have sold out to the Federation.
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