Space: 1999, Infernal Machine

S1 E1 • 50m • HDTVPG

An explosion disintegrates the moon's dark side and hurls it, along with 311 occupants, out of Earth's orbit.

S1 E2 • 50m • HDTVPG

Dr. Russell's presumed-dead husband mysteriously reappears on a reconnaissance mission to a nearby planet.

S1 E3 • 50m • HDTVPG

The Alphans take drastic measures to prevent the traveling moon from drifting into a black sun.

S1 E4 • 50m • HDTVPG

Koenig must prevent an alien force on an obsolete mission from destroying Moonbase Alpha and its occupants.

S1 E5 • 50m • HDTVPG

Simmonds forces Koenig to let him take the place of a dead alien on an earthbound ship.

S1 E6 • 50m • HDTVPG

A sudden acceleration creates a duplicate moon complete with replicas of the crew.

S1 E7 • 50m • HDTVPG

Koenig must prevent an alien force on an obsolete mission from destroying Moonbase Alpha and its occupants.

S1 E8 • 50m • HDTVPG

A beautiful woman convinces all but Koenig to join her on a seemingly paradisiacal planet.

S1 E9 • 50m • HDTVPG

A wandering energy force inhabits the body of Alpha technician Anton Zoref, turning him into an energy absorbing being.

S1 E10 • 50m • HDTVPG

Cynthia's son turns out to be an alien seeking human bodies for fleeing fugitive space travelers to inhabit.

S1 E11 • 50m • HDTVPG

Koenig's soul is captured and scrutinized by an alien living there.

S1 E12 • 50m • HDTVPG

Revenge-seeking aliens complicate matters as the crew tries to incapacitate a deadly ship with valuable information.

S1 E13 • 50m • HDTVPG

An ancient alien queen persuades Koenig to allow their moon to collide with her planet.

S1 E14 • 50m • HDTVPG

Two inhabitants of an ice planet encourage Koenig to join them in immortality.

S1 E15 • 50m • HDTVPG

Several of the crew become Cro-Magnons after being caught in a time warp on a newly discovered planet.

S1 E16 • 50m • HDTVPG

While exploring a cavern in an asteroid, the Alphans release Balor, a sadistic alien who has achieved immortality.

S1 E17 • 50m • HDTVPG

Koenig appeals aliens to allow the crew to settle on their planet after the aliens' attack leaves Moonbase Alpha inhabitable.

S1 E18 • 50m • HDTVPG

Koenig arranges a cease-fire between warring planets when Moonbase Alpha is caught in their fire.

S1 E19 • 50m • HDTVPG

A botanist's experiments in communication between plants and man bring bizarre, frightening results.

S1 E20 • 50m • HDTVPG

Koenig decides to use explosives to prevent a collision with an unseen intelligence.

S1 E21 • 50m • HDTVPG

Communication from another planet dashes the crew's hopes of settling on a planet similar to Earth.

S1 E22 • 50m • HDTVPG

The crew answers a ship's distress signal and discovers its occupants employing a gruesome survival technique.

S1 E23 • 50m • HDTVPG

Cellini tries to vindicate himself by proving the existence of a terrifying, tentacled monster.

S1 E24 • 50m • HDTVPG

Koenig is faced with a tough choice when Moonbase Alpha's orbit ceases.