Character Relationship Map: Moontrap

Characters

• Col. Jason Grant (played by Walter Koenig) — protagonist

  Mission commander of the Space Shuttle Camelot. Investigates a derelict ship, discovers ancient artifacts and a mummified corpse. Later leads a Moon mission with Ray Tanner to destroy the threat. Surv...

• Ray Tanner (played by Bruce Campbell) — protagonist

  Fellow astronaut accompanying Col. Grant on the Moon search-and-destroy mission. Discovers ancient lunar ruins alongside Grant. Killed during a Kaalium attack on the lunar surface, preventing his retu...

• Mera (played by Leigh Lombardi) — supporting

  Ancient human woman found in suspended animation on the Moon. Identifies herself and warns Grant about the killer cyborgs known as the Kaalium. Becomes Grant's partner after surviving the lunar attack...

• Grant's Son (played by Doug Childs) — supporting

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Grant's Son → Col. Jason Grant (son)
• Col. Jason Grant → Mera (Romantic Partner) — They become partners after surviving the lunar attacks and escaping the ship.

  Grant and Mera escape the alien ship together, and the ending shows them living as a couple on Earth.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Col. Jason Grant → Ray Tanner (Alliance Teammate) — Fellow astronauts who work together on the mission to investigate and destroy the threat.

  Grant and Tanner go to the Moon together on a search-and-destroy mission and explore the lunar ruins. Tanner is later killed during a Kaalium attack w...

Story Analysis

A lunar discovery brings an ancient cybernetic threat into conflict with astronauts, whose struggle to survive culminates in the destruction of an alien ship.

Plot Progression

1. A Signal from the Moon — A robotic eye watches the Apollo 11 departure, and decades later the Camelot finds a derelict ship near Earth. Grant's investigation brings a pod and ancient remains to a laboratory.
2. The Threat Awakens — The pod constructs a cyborg that attacks the laboratory before Grant destroys it. Grant and Tanner then launch a mission to the Moon to confront the danger at its source.
3. Mera and the Lunar Past — Grant and Tanner discover ancient ruins and awaken Mera, who warns them about the Kaalium. An attack forces the group back toward the lunar module, only to find it missing.
4. Stranded and Captured — The Kaalium destroy the command module and leave the humans stranded. Tanner is killed, while Grant and Mera are captured and taken aboard the alien ship.
5. Escape and Aftermath — Grant and Mera escape captivity and use the entangled lunar module to destroy the ship. They later live together on Earth, but a surviving pod hints that the danger may continue.