Starship Invasions (1977) Timeline Explained – Every Event in Order

Rameses leads the Legion of Winged Serpent from Alpha in the Orion constellation, where their star is about to go supernova. With their homeworld facing destruction, Rameses surveys Earth and determines it is a perfect new home for their race. The Alphans also discover that many Earth inhabitants are descendants of transplanted humans, making the planet genetically compatible with their people. This combination of urgent necessity and perfect suitability drives their invasion plan.

Foreshadowing: Earlier scenes establish that Alpha's star is dying, creating the desperation that motivates the entire invasion.

• rameses
• alpha
• earth invasion
• dying planet
• supernovae
• winged serpent

The extermination device is a telepathic weapon that transmits a mental command driving humans to commit suicide. Rameses initially uses a smaller version to erase evidence of alien abductions by making witnesses kill themselves. He later deploys a larger version capable of affecting all of humanity, which would create mass suicides across the planet and leave Earth defenseless for Alphan occupation. The device works by invading the minds of those who have been abducted and compelling them toward self-destruction.

Foreshadowing: The smaller device used on abductees establishes the weapon's mind-control capability before the larger scale deployment.

• extermination device
• telepathic weapon
• suicide
• mind control
• alien weapon

The Intergalactic League of Races, comprised of advanced aliens from Zeta Reticuli, maintains a galactic treaty that forbids contact with less developed civilizations like humanity. When Rameses violates this treaty by invading Earth, the League intervenes to protect both the treaty and humanity. The League operates from an underwater base on Earth and serves as humanity's unlikely defender against the Alphan threat, treating the planet as a protected world that cannot be exploited by more advanced races.

Foreshadowing: Rameses' initial visit to the League base establishes the treaty restrictions before the conflict escalates.

• league of races
• zeta reticuli
• galactic treaty
• alien alliance
• earth protection

Professor Allan Duncan, a human UFO expert, becomes Earth's link to the League after they contact him for assistance. When the League's surviving ship is damaged, Duncan enlists his friend Malcolm, a computer expert, to repair the alien craft using scavenged parts from downtown Toronto. Duncan uses his astronomical knowledge to navigate the repaired ship, calculating navigation routes with his pocket calculator to guide the vessel toward other League ships in the outer Solar System. His expertise becomes crucial in tipping the balance against the Legion.

Foreshadowing: Earlier scenes show Duncan appearing on television discussing UFO abductions, establishing his expertise before the League contacts him.

• allan duncan
• malcolm
• league ship repair
• alien technology
• navigation
• toronto

During Rameses' attack on the League base, a robot is damaged but not completely destroyed. The robot later regains consciousness and takes control of the base's systems. It reprograms the extermination device to turn against the Legion instead of humanity, causing Rameses' own ships to collide with each other. This malfunction devastates the Legion's remaining fleet and ultimately leads to their defeat.

Foreshadowing: The robot's partial destruction during the initial attack hints at its potential to resurface and affect the outcome.

• robot
• league base
• extermination device
• self-destruction
• legion defeat

Rameses crashes his ship into the Moon after learning that his home star has already gone supernova, meaning Alpha and his entire race have been destroyed. With his people and planet already lost, Rameses makes a final desperate act by ramming the Moon, likely as a final act of defiance or accepting his doom. This sacrifice marks the end of the Legion as a threat to Earth.

Foreshadowing: The urgency of Alpha's impending supernova establishes the ticking clock that drives Rameses' desperation throughout the film.

• rameses
• moon crash
• supernova
• alpha
• sacrifice
• final battle

Earth survives through a combination of the League's intervention and the Legion's self-destruction. After Duncan and Malcolm repair a League ship and join forces with other League vessels, the combined squadron battles the Legion. The damaged robot in the League base turns the extermination device against the Legion, causing their ships to destroy each other. With Rameses' fleet shattered and his home planet destroyed, the invasion collapses and Earth is saved.

Foreshadowing: The League's initial resistance and Duncan's involvement set up the eventual alliance that defeats the Legion.

• earth survival
• league victory
• legion defeat
• alien invasion ending

Betty Duncan, Professor Duncan's wife, attempts suicide when the extermination device passes over Toronto. The telepathic weapon's influence drives her to slash her wrists, similar to other victims affected by the device across the planet. She is rescued when the League reaches their home in time and revives her, making her survival a narrow escape that underscores the real stakes of the alien conflict.

Foreshadowing: The earlier deployment of the extermination device establishes its ability to drive humans to self-harm.

• betty duncan
• suicide attempt
• extermination device
• toronto
• league rescue

After a League saucer crashes in Toronto, Malcolm uses scavenged parts from downtown to repair the damaged alien craft. His computer expertise allows him to understand and fix the alien technology sufficiently for the ship to fly again. The repair job is improvised but effective enough to reach orbit, though the makeshift fixes eventually burn out beyond the Moon, forcing Duncan to navigate manually using his astronomical knowledge to guide them toward League reinforcements.

Foreshadowing: Malcolm's computer skills are established earlier, making his ability to repair alien technology plausible.

• malcolm
• alien ship repair
• toronto
• first canadian place
• improvised technology

Alpha's star goes supernova during the final battle between the League and Legion forces around Earth. Rameses only discovers this catastrophic news at the climax, when it's too late for his people. The destruction of Alpha means the Alphans no longer have a home to return to, adding tragic weight to Rameses' final decision to crash into the Moon rather than face the loss of his entire race.

Foreshadowing: The repeated mentions of Alpha's dying star establish the urgency driving the invasion timeline.

• alpha
• supernova
• star destruction
• orion constellation
• rameses race