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Season guide

The Sullivans: Season 20

50 episodes Updated Sep 25, 2026

January 18, 1947 to June 18, 1947 A private detective creates turmoil in Jack and Laura’s cosy lives while Ray ruffles feathers with his ‘social comment’ broadcasts at Radio 3PA. With Jim away working all hours Alice grows lonely. Sullivan-Spencer Plastics comes under threat of take over and Dave learns to trust Kitty’s instincts. Patti finds a friend who shares her interest in home renovation but Tom is suspicio

Previously on The Sullivans

Season 20 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 Sullivans Season 19.
  • ⚡ 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.

Season overview

January 18, 1947 to June 18, 1947

A private detective creates turmoil in Jack and Laura’s cosy lives while Ray ruffles feathers with his ‘social comment’ broadcasts at Radio 3PA.

With Jim away working all hours Alice grows lonely.

Sullivan-Spencer Plastics comes under threat of take over and Dave learns to trust Kitty’s instincts.

Patti finds a friend who shares her interest in home renovation but Tom is suspicious.

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Season 20 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 20 Progress Shield

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

Season 20: Filler vs. Essential Canon

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

94%
Mytharc (3): Crucial lore & season climaxes
Core (47): Character development & subplots
Side Quest (0): Standalone / filler
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