Silo

2023United States3 seasons · 30 episodes

Thousands of people live inside an enormous underground structure, relying on strict rules and inherited explanations for a world they cannot…Read more +Read less −

Thousands of people live inside an enormous underground structure, relying on strict rules and inherited explanations for a world they cannot safely visit. Engineer Juliette Nichols begins to question the system after events around her expose gaps in its official story. Among the people who have helped shape her life is Martha Walker, an electrical engineer whose workshop offers both expertise and refuge. Walker's own history includes a marriage to Carla that has remained unresolved across years of separation. Their reconnection, particularly in the second season, becomes part of the silo's wider struggle over loyalty and control. The science-fiction drama gives their intimacy weight alongside the mystery surrounding the society they inhabit.

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Supporting sapphic storylineDrama Science-Fiction Mystery

Sapphic characters & cast

Harriet Walter

as Martha Walker

Main sapphic character

Clare Perkins

as Carla

Supporting sapphic character

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Watch trailer on youtube.com ↗ · The YouTube player loads only when you choose it.

BEHIND THE SCENES

Details & credits

Country: United States
Language: English
Premiere: 2023-05-05
Seasons: 3
Episodes: 30

Image credits

Poster: TVmaze series catalogue · Source
Harriet Walter: TVmaze performer catalogue · Source
Clare Perkins: TVmaze performer catalogue · Source

Sources & editorial notes (4)

Last researched 2026-10-30. Editorially approved.

year: Series identity, release and cast catalogue — TVmaze
genres: Series identity, release and cast catalogue — TVmaze
status: Series identity, release and cast catalogue — TVmaze
country: Series identity, release and cast catalogue — TVmaze
language: Series identity, release and cast catalogue — TVmaze
description: Series identity, release and cast catalogue — TVmaze
trailer url: Apple TV: official season 2 trailer
watch links: Apple TV — Canada subscription; playback untested
season count: Series identity, release and cast catalogue — TVmaze
western cast: Series identity, release and cast catalogue — TVmaze
episode count: Series identity, release and cast catalogue — TVmaze
premiere date: Series identity, release and cast catalogue — TVmaze
classification note: Sourced sapphic storyline / cast evidence
representation type: Sourced sapphic storyline / cast evidence