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Season guide

The Professionals: Season 4

15 episodes Premiered Sep 7, 1980
Previously on The Professionals

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 The Professionals 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

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Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

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

40%
60%
Mytharc (6): Crucial lore & season climaxes
Core (9): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

The Acorn Syndrome

Sep 7, 1980

The daughter of a British Government engineer who is working on a defence protect is kidnapped, and the only way she will be safely returned is if he agrees to betray secrets to en

S4·E2 Core

Wild Justice

Sep 14, 1980

Bodie's mental state is called ino question when he becomes obsessed with a local Hell's Angel motorcycle gang, gradually sending him further and further behind in training. Is he

S4·E3 Mytharc

Fugitive

Sep 21, 1980

A CIA agent is murdered in London, prompting CI5 into launching a fake arms deal with the terrorists who were responsible for the killing. But the gang uncover the plot in time, ta

S4·E4 Core

Involvement

Sep 28, 1980

In the midst of a shoot-out during a drugs smuggling investigation, Doyle meets and falls for Ann Holly, only to discover that CI5 suspect her of being closely linked to the scam h

S4·E5 Core

Need To Know

Oct 5, 1980

Cowley finds himself under suspicion when a former colleague of his is arrested for being a double agent. So just how deeply involved is the CI5 Chief?

S4·E6 Core

Take Away

Oct 12, 1980

A team of Hong Kong police join CI5 in London to help crack a local heroin supply and protection racket. It's down to Bodie and Doyle to expose a scheme to smuggle drugs to the US

S4·E7 Core

Black Out

Oct 19, 1980

CI5 discover that a possible terrorist attack is being planned, and the only clue they have in solving it is a German girl who is found collapsed in a church and suffering from amn

S4·E8 Mytharc

Blood Sports

Oct 26, 1980

CI5 move in to protect the daughter of a South American President after his son - and her brother - is assassinated on the field of a polo match.

S4·E9 Core

Slush Fund

Nov 2, 1980

A hitman is employed by a group of East German officials to assassinate a reporter who is planning to publish a report in which their new fighter plane is branded as a potential de

S4·E10 Mytharc

The Gun

Nov 9, 1980

A drug addict is murdered by a pusher who then hastily discards the gun, only for it to be found by a young boy-who then accidently shoots his friend in the process. The pusher the

S4·E11 Core

Hijack

Nov 30, 1980

Silver bullion is being shipped into Britain via the Iron Curtain, only for it to be hijacked by one of the group's own officials.

S4·E12 Core

Mixed Doubles

Dec 7, 1980

Bodie and Doyle are undergoing intense training in preparation for an assignment where they are protecting a foreign official...at the same time, two potential killers are receivin

S4·E13 Core

Weekend in the Country

Dec 14, 1980

Bodie, Doyle and their latest girlfriends are on a quiet weekend in the country when they unwittingly get caught up at a farmhouse siege in which they must try and escape from a gr

S4·E14 Mytharc

Kickback

Dec 20, 1980

Bodie and Keller, an old acquaintance from his days in the SAS, go undercover in order to trap a would-be assassin by posing as hitmen offering to do the job themselves - in order

S4·E15 Mytharc

It's Only a Beautiful Picture...

Dec 27, 1980

Various industrial secrets and highly-valuable arts treasures are being stolen and sold on by a gang who are using the blind routine of Customs to their full advantage. CI5 devise

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