Season guide

Luther: Series 4

2 episodes Premiered Dec 15, 2015 Updated Oct 5, 2026

Previously on Luther

Season 4 Lore Primer

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

⚡ Picks up essential narrative continuity directly following the events of Luther Season 3.
⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.

Season 4 Episodes

Episode Guide

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Season 4 Progress Shield

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Season 4: Filler vs. Essential Canon

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

100%

Mytharc (2): Crucial lore & season climaxes

Core (0): Character development & subplots

Side Quest (0): Standalone / filler

S4·E1 Mytharc

Episode 1

Dec 15, 2015 · 58 min

Away from the police force, Luther receives a visit from Detective Chief Inspector Theo Bloom and Detective Sergeant Emma Lane. They bring him some new evidence that will draw him

S4·E2 Mytharc

Episode 2

Dec 22, 2015 · 58 min

On the trail of a horrifying killer, Luther finds himself haunted by ghosts from his past.