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Season guide

Boon: Season 4

13 episodes Premiered Oct 2, 1989 Updated Sep 28, 2026
Previously on Boon

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 Boon 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.

31%
69%
Mytharc (4): Crucial lore & season climaxes
Core (9): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Walking Off Air

Oct 2, 1989 · 60 min

Harry and Ken have now moved to Nottingham - while Ken becomes a DJ's bodyguard, Harry goes into partnership with a widow to run a country club.

S4·E2 Core

Of Meissen Men

Oct 9, 1989 · 60 min

Ken is approached by Marion Kershaw who is looking for her missing husband, Geoff, who is in ""the import/export business"". Ken soon discovers that Geoff Kershaw owes money to the

S4·E3 Core

The Relief of Matty King

Oct 16, 1989 · 60 min

At the Magistrates Court, the renewal of a gaming licence for the Carrington Club run by Dick Vaughan, is postponed pending further enquiries after a punter in the public gallery a

S4·E4 Core

Vallance's Liberty

Oct 23, 1989 · 60 min

A middle-aged couple, Terry and Gill Conroy, driving an expensive Jaguar, break down in a residential street, outside the house owned by George and Irene Boxall. The Boxalls offer

S4·E5 Core

Do Not Forsake Me

Oct 30, 1989 · 60 min

Robert Messener employs Ken to act as his bodyguard and chauffeur, and to run various errands associated with the sale of his house and his nightclub, in preparation for a hasty de

S4·E6 Core

Arms and the Dog

Nov 6, 1989 · 60 min

Ken and Harry are guarding Tinkerbell, a greyhound, at Woodcote Park, before her big race. The owner, Mr Hancock, insists that Tinkerbell must be fed ""Mr Marrow"" dog food and a d

S4·E7 Core

Sickness and Health

Nov 13, 1989 · 60 min

Ken is employed by the owners of a nursing home to investigate a series of petty thefts of patients' money. Because of pressure of work, he passes the case to Harry who goes to sta

S4·E8 Core

In It for the Monet

Nov 20, 1989 · 60 min

Mr and Mrs Sheridan, parents of Isobel, a university student studying Art History, ask Ken to investigate why their daughter has changed and why she suddenly seems to be suspicious

S4·E9 Core

Love Letters from a Dead Man

Nov 27, 1989 · 60 min

Ken investigates how a man can be sending letters from beyond the grave, and Harry helps a racing cyclist.

S4·E10 Core

Big Game Hunt

Dec 4, 1989 · 60 min

The Bisons, a secret society similar to the Freemasons, is holding its meeting at Woodcote Park. Large amounts of alcohol are consumed. On the way home, one of the Bisons, Derek Do

S4·E11 Mytharc

Don't Buy from Me, Argentina

Dec 11, 1989 · 60 min

Helen is hosting a party for Argentinian polo players at Woodcote Park. She falls for Raoul Gomez, a suave Argentinian. Aiden Curtis, the husband of one of the English guests, asks

S4·E12 Mytharc

All in a Day's Pork

Dec 18, 1989 · 60 min

Ken is employed by Amelia Woods, a secretary at a local meat-processing factory, to investigate why various dictation tapes and letters go missing from the office and then re-appea

S4·E13 Mytharc

The Eyes of Texas

Dec 20, 1989 · 60 min

Harry is making plans to sell his stake in Woodcote Park because it is losing money. He is thinking of buying ""Hugo's"", a nightclub and disco, but is warned off by a ruthless Sco

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