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Season guide

The Professionals: Season 3

8 episodes Premiered Oct 27, 1979 Updated Oct 27, 2026

In the third series of the British crime-action-drama The Professionals, the agents of CI5 face a period of heightened danger as the organization becomes the primary target for a wave of bombings and targeted assassination attempts. Amidst this climate of anarchy and terror, the team is tasked with investigating the murder of a defector. As the pressure mounts, the professional relationship between the two lead agent

Previously on The Professionals

Season 3 Lore Primer

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

  • ⚡ CI5 is a specialized British department mandated to combat terrorism and high-profile crimes.
  • ⚡ George Cowley is a hard ex-MI5 operative who serves as the controller and hand-picked the members of his team.
  • ⚡ Bodie is a cynical ex-SAS paratrooper and former mercenary serving as a top agent for CI5.
  • ⚡ Doyle serves alongside Bodie as a top agent for the department under Cowley's command.
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Season overview

In the third series of the British crime-action-drama The Professionals, the agents of CI5 face a period of heightened danger as the organization becomes the primary target for a wave of bombings and targeted assassination attempts. Amidst this climate of anarchy and terror, the team is tasked with investigating the murder of a defector. As the pressure mounts, the professional relationship between the two lead agents, Bodie and Doyle, encounters significant internal tension. The pair begins to harbor deep suspicions regarding the integrity of their superior, George Cowley. Specifically, they grow concerned that their boss may be involved in the illicit sale of weapons to the East Germans. This narrative arc forces the agents to navigate the complexities of their mandate to combat high-profile crimes while simultaneously questioning the loyalty of the man who hand-picked them for the unit. The season continues the show's focus on the high-stakes operations of the Criminal Intelligence 5 department as they work to maintain public safety against persistent threats, all while the internal trust within the team is tested by allegations of corruption at the highest level of their command structure.

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Season 3 Episodes

Episode Guide

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Season 3 Progress Shield

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Season 3: Filler vs. Essential Canon

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

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Mytharc (4): Crucial lore & season climaxes
Core (4): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

The Purging of CI5

Oct 27, 1979

CI5 and their agents find themselves under attack from a vendetta of bombings and assassination attempts. Bodie and Doyle are on a chase to find out who the perpetrators are before

S3·E2 Core

Backtrack

Nov 3, 1979

It's just another routine house break-in for a cat burglar, until he accidentally uncovers a complex drugs smuggling operation. When CI5 step in, they realise it's not just the bur

S3·E3 Core

Stopover

Nov 10, 1979

Cowley is offered the name of a highly-placed double agent from an old colleague - who in return wants to be guaranteed protection with CI5. This leads to the start of a dangerous

S3·E4 Mytharc

Dead Reckoning

Nov 17, 1979

A spy is extradited to Britain with an attempt to keep his arrival top-secret. However, the Bulgarians from Batak's homeland who sent him appear to be trying to make his movements

S3·E5 Core

The Madness of Mickey Hamilton

Nov 24, 1979

Years after a man's wife died and his child left brain-damaged following a series of blunders at the hospital they were treated at, he returns to finally seek revenge by systematic

S3·E6 Core

A Hiding to Nothing

Dec 1, 1979

A dummy run that has been staged for the visit of a Middle Eastern official is found to have been recorded by a foreign student, subsequently leading CI5 to suspect a security leak

S3·E7 Mytharc

Runner

Dec 8, 1979

An attempt to start up a street war is launched by a gangland breakaway opposition group, but their leader appears to have an ulterior motive in his actions.

S3·E8 Mytharc

Servant of Two Masters

Dec 15, 1979

Bodie and Doyle are shocked to discover that Cowley appears to be selling nerve gas to a group of East Germans in order to line his own pockets, and are assigned by his rival Plumb

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