Story Structure — 5 Plot Phases
Season 1: Initial Contact & Suspicion
SHADO engages its first alien battle and captures a pilot, revealing hostile motives. Foster witnesses UFO activity and begins investigating Straker, suspecting a cover-up. Early encounters establish the baseline threat and internal distrust.
Key Events
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Sky One Cripples Alien Ship — SHADO engages its first battle, crippling an alien vessel that crashes in a lake. Characters: Ed Straker
Location: Atmosphere
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Blue-Skinned Pilot Captured — Straker's team secures the pilot, revealing grim alien motives. Characters: Ed Straker
Location: Lake Crash Site
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Foster UFO Sighting — Foster witnesses UFO and Sky One, faces disbelief and suspects cover-up. Characters: Colonnello Paul Foster
Location: Test Flight Zone
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Foster Investigates Straker — Foster conducts independent investigation into Straker's activities. Characters: Colonnello Paul Foster, Ed Straker
Location: SHADO Perimeter
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Alien Body Reveals New Evidence — Recovered alien body overturns SHADO's previous theories. Characters: Ed Straker
Location: Moonbase Lab
Season 1: Escalating Threats & Internal Conflict
Alien attacks intensify, destroying lunar modules and prompting political pushback. Foster openly challenges Straker's command, leading to an assassination attempt. Psychological warfare emerges as Croxley gains ESP and targets SHADO leadership.
Key Events
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Alien Body Reveals New Evidence — Recovered alien body overturns SHADO's previous theories. Characters: Ed Straker
Location: Moonbase Lab
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Regan Possessed by Alien Mind — Interceptor pilot Jim Regan becomes host to an alien consciousness. Characters: Ed Straker
Location: Moonbase
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Lunar Module 32 Destroyed — Alien device destroys module, prompting Straker to demand debris cleanup. Characters: Ed Straker
Location: Lunar Orbit
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Straker vs Henderson — Straker clashes with IAC chairman over SHADO's operational future. Characters: Ed Straker
Location: IAC Chamber
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Straker's Son Injured — Straker faces career-defining choice between son's survival and alien tracking. Characters: Ed Straker
Location: Hospital
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Transporter Dilemma — Critical resource allocation forces difficult operational priorities. Characters: Ed Straker
Location: West Coast Ireland
Season 1: Lunar Operations & Psychological Warfare
Underwater investigations trap the crew, while naval cover-ups deepen Straker's suspicions. Foster pursues leads through romance, uncovering orchestrated alien deaths. A probe successfully tracks a UFO to its home planet, marking a strategic breakthrough.
Key Events
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Transporter Dilemma — Critical resource allocation forces difficult operational priorities. Characters: Ed Straker
Location: West Coast Ireland
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Croxley ESP Heightened — Widow's husband gains telepathy after house destruction, learns SHADO secrets. Characters: Ed Straker
Location: Crash Site
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Croxley Lures Straker — Possessed Croxley attempts to assassinate SHADO leadership. Characters: Ed Straker, Colonnello Paul Foster
Location: Ruined House
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Authority Questioned — Foster challenges Straker's split-second rescue decision publicly. Characters: Ed Straker, Colonnello Paul Foster
Location: Moonbase
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Attempt on Straker's Life — Coordinated attack targets Straker following Foster's campaign. Characters: Ed Straker
Location: SHADO HQ
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Sub-Smash Investigation — Team investigates freighter sinking, suspects underwater UFO. Characters: Ed Straker, Colonnello Paul Foster
Location: Atlantic Ocean
Season 1: Espionage, Abduction & Court Martial
Psychobombs empower civilians to attack SHADO, while Foster survives lunar stranding and bonds with an alien. Blackmail compromises Moonbase defenses, forcing a suicide mission. Collins returns altered, and temporal stasis experiments reveal alien manipulation.
Key Events
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Sub-Smash Investigation — Team investigates freighter sinking, suspects underwater UFO. Characters: Ed Straker, Colonnello Paul Foster
Location: Atlantic Ocean
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Submarine Trapped — Skydiver downed, crew faces claustrophobia and alien threat. Characters: Ed Straker, Colonnello Paul Foster
Location: Sea Bed Ledge
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Naval UFO Shootdown — Admiralty rejects investigation, prompting Straker's suspicion of cover-up. Characters: Ed Straker
Location: Atlantic
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Foster Courts Sarah Bosanquet — Foster uses romance to access classified information about the incident. Characters: Colonnello Paul Foster
Location: Admiralty Office
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Liz Newton & Cass Fowler — Civilians encounter alien, Foster realizes death was orchestrated. Characters: Ed Straker, Colonnello Paul Foster
Location: Clare Woods
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Probe Camera Approved — Straker secures approval to build Earth-tech probe for alien homeworld. Characters: Ed Straker
Location: SHADO Command
Season 1: Origins, Duplicates & Final Awakening
Foster is abducted but crashes back, leading to a court martial that clears his name after spy gear is exposed. Flashbacks reveal Straker's founding struggles. A mysterious sea dome contains SHADO duplicates, and a coma survivor awakens with alien-linked memories.
Key Events
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Probe Camera Approved — Straker secures approval to build Earth-tech probe for alien homeworld. Characters: Ed Straker
Location: SHADO Command
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UFO Tracked Home — Technology successfully follows UFO at extreme velocity to origin planet. Characters: Ed Straker
Location: Deep Space
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Psychobombs Empower Youths — Alien device grants destructive powers to three young individuals. Characters: Ed Straker
Location: Rural Sector
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SHADO HQ Blowing Attempt — Empowered woman targets headquarters before alien source is destroyed. Characters: Ed Straker
Location: SHADO HQ
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Foster Stranded on Moon — Foster survives oxygen loss, presumed lost during lunar confrontation. Characters: Colonnello Paul Foster
Location: Lunar Surface
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Foster & Alien Friendship — Foster and alien cooperate for survival, developing unexpected bond. Characters: Colonnello Paul Foster
Location: Lunar Landscape
A secret, high-technology international agency called SHADO defends Earth from alien invaders.