Space 1999: Review: The Mark of Archanon
“The Mark of Archanon” is a standout episode of Space: 1999 that slows things down to deliver a genuinely emotional, character-driven story. Unlike other episodes that rely heavily on cosmic monsters or flashy space battles, this one focuses on the discovery of a father and son from a race known as the Archanons, who have been frozen in a cave beneath the Moon’s surface for centuries.
The instant tension that arises when they wake up hooks you right away, especially when the Alphans realize these peaceful-looking visitors are carrying a dark, violent curse. It is a refreshing change of pace for the second season, trading chaotic action for some genuine suspense and psychological depth.The real strength of this episode lies in the brilliant guest performances and the tragic dynamic between Pasc and his young son, Ealon.
John Lynch brings an incredible amount of intensity to the screen, perfectly capturing the desperation of a father trying to hide a terrifying secret from the crew. The concept of the “killing sickness”—a genetic flaw that turns a peaceful people into uncontrollable executioners—is handled really well, creating a constant sense of dread. Watching the Alphans, particularly Dr. Helena Russell, try to solve this medical mystery while keeping everyone on the base safe adds a great layer of tension to the whole hour.
Visually, the episode does a great job with its underground setting, making the tight, rocky caverns feel completely separate from the familiar tech of Moonbase Alpha. The contrast between the cold, sterile base and the ancient Archanon stasis chamber gives the story a cool, archaeological vibe. Even with the typical late-1970s sci-fi aesthetic, the makeup and costuming for the aliens feel distinct and memorable. The director uses the tight spaces beautifully to build up the claustrophobia once Pasc succumbs to the sickness and turns on the crew.
If there is a downside, it is that the climax wraps up a bit too neatly with a quick medical fix, which takes away some of the weight from the heavy themes of legacy and curse. Still, the episode shines because it lets the main cast actually connect with the guests on a human level rather than just fighting off another alien threat.
It stands out as a highly memorable, emotional episode that proves the show could deliver great drama when it focused on the stakes of the characters. It is a must-watch for fans who appreciate the deeper, more thoughtful side of classic sci-fi.