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Season guide

Out of the Unknown: Season 4

11 episodes Premiered Apr 21, 1971 Updated Oct 1, 2026
Previously on Out of the Unknown

Season 4 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Out of the Unknown Season 3.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

27%
73%
Mytharc (3): Crucial lore & season climaxes
Core (8): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Taste of Evil

Apr 21, 1971 · 50 min

Stephen Chambers, a new master of Warby Stones school for the 'ultra-intelligent boys', finds strange things happening to him. Reason tells him that they must be linked with the bo

S4·E2 Core

To Lay a Ghost

Apr 28, 1971 · 50 min

Eric and Diana Carver move into a new home in the country, but a series of strange events soon cause Diana to suspect the house is haunted by the ghost of a man. A ghost who seems

S4·E3 Core

This Body Is Mine

May 5, 1971 · 50 min

Allen Meredith is a brilliant scientist but too mild-mannered to make an impact or fight for the money he needs. He has invented a process to exchange minds between bodies. His amb

S4·E4 Core

Deathday

May 12, 1971 · 50 min

Adam Crosse is a reporter for a local paper. A neurotic under-achiever, the last straw comes when he discovers his wife Lydia is having an affair and she coolly tells him she has n

S4·E5 Core

The Sons and Daughters of Tomorrow

May 19, 1971 · 50 min

The small East Anglian village of Plampton has one distinction - a famous unsolved murder. A cynical journalist decides to go there to see what he can stir up. But Plampton is a co

S4·E6 Core

Welcome Home

May 26, 1971 · 50 min

Dr Frank Bowers has been looking forward to returning home after a long stay in a psychiatric ward. But when he gets there, he finds that not only does no one recognize him, but an

S4·E7 Core

The Last Witness

Jun 2, 1971 · 50 min

A man, Harris, wakes up in a hotel on a small island after a shipwreck. He keeps recognising flashes of what he sees, until he realises his visions are of actions yet to come - cul

S4·E8 Core

The Man in My Head

Jun 9, 1971 · 50 min

A team of soldiers break into an enemy missile base. Such is the secrecy of their mission, they have been hypnotically programmed with their orders and will only remember each stag

S4·E9 Core

The Chopper

Jun 16, 1971 · 50 min

The vengeful spirit of a dead motorcyclist is reluctant to leave his wrecked machine and manifests itself to a woman journalist as motorbike noise.

S4·E10 Mytharc

The Uninvited

Jun 23, 1971 · 50 min

A Middle-aged couple are disturbed during the night by a series of unwelcome visitations.

S4·E11 Mytharc

The Shattered Eye

Jun 30, 1971 · 50 min

A chance meeting with an old tramp brings a violent force into a young painter's like.

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