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Season guide

Boon: Season 5

13 episodes Premiered Sep 25, 1990 Updated Sep 28, 2026
Previously on Boon

Season 5 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 Boon Season 4.
  • ⚡ 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 5 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 5 Progress Shield

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

Season 5: Filler vs. Essential Canon

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

23%
77%
Mytharc (3): Crucial lore & season climaxes
Core (10): Character development & subplots
Side Quest (0): Standalone / filler
S5·E1 Mytharc

Trouble in the Fields

Sep 25, 1990 · 60 min

Harry has evidently gone up in the world since he sold Woodcote Park because he now drives a Jaguar XJ6. He is planning to start a security business from offices at a canal basin b

S5·E2 Core

Tales from the River Bank

Oct 2, 1990 · 60 min

Ken is asked to investigate the fiancée of Lawrence Varlish. He suspects that she might be having an affair with her hypnotherapist, Geoffrey Phillips. Harry goes to see Phillips,

S5·E3 Core

Work, Rest and Play

Oct 9, 1990 · 60 min

Ken takes a job minding a tough Glaswegian footballer who finds it hard to keep his eyes on the ball; Harry is kept busy by a contract to guard some puppies, and a request to organ

S5·E4 Core

The Belles of St. Godwalds

Oct 16, 1990 · 60 min

Justina Bradleigh is a beautiful but spoilt 18-year-old pupil at St Godwald's, a girls' public school. She is secretly going out with Perry, a cocky young man who is constructing t

S5·E5 Core

Rival Eyes

Oct 23, 1990 · 60 min

Harry has just moved to the peaceful village of Upper Ridley and Rocky is lodging with him. They help Sylvia Clayborough, a young widow, who has taken over her husband's fishmonger

S5·E6 Core

Burning Ambition

Oct 30, 1990 · 60 min

Lorraine Simpson is a red-headed young teenager who has just been released from borstal after serving a sentence for arson. Why has she kept a newspaper cutting which announces Ken

S5·E7 Core

Bully Boys

Nov 6, 1990 · 60 min

Laura is looking after Greg Willis, the ten-year-old son of Harry's friends who are away on holiday. Greg is very withdrawn and doesn't want to got to school. While waiting to coll

S5·E8 Core

A Night at the Ballet

Nov 13, 1990 · 60 min

CBS are looking after security at the Theatre Royal for a charity gala. One of the ballet dancers, Jan Melzer, is quite obviously scared stiff of her agent, Eckford, and Kelp, a th

S5·E9 Core

Undercover

Nov 20, 1990 · 60 min

Laura and Rocky have been given the task of tailing Victor Howells, a young man who has just been released from prison. He is described by Ken's client, Mr Pollock, as ""a vindicti

S5·E10 Core

Daddy's Girl

Nov 27, 1990 · 60 min

Ken and Harry are guarding Upper Ridley Hall, near where Harry lives, and where a big Society wedding will be taking place between Sir Alan and Lady Tessa Bolton's daughter, Kate,

S5·E11 Core

Best Left Buried

Dec 4, 1990 · 60 min

CBS has been given the contract to guard a building site - a derelict church which is due to be demolished and replaced with luxury flats by a local builder, Donald Bannerman. Duri

S5·E12 Mytharc

Thicker Than Water

Dec 11, 1990 · 60 min

Margery Keeverton is looking after the estate of her uncle, Geoffrey Keeverton, who has just died. He had made a considerable amount of money from a fairground amusement arcade and

S5·E13 Mytharc

The Tender Trap

Dec 18, 1990 · 60 min

In the weeks leading up to Christmas, Lawrence Drake, a rich ex-racing driver, asks Ken to watch his wife, Pamela, whom he suspects is having an affair. Lawrence feels that he has

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