This response uses data provided by Google's Knowledge Graph Sherlock premiere recap: Season 4, Episode 1
: Available on Hulu , Disney+ , AMC+ , Britbox , and PBS Passport . Sherlock_in_streaming_s04e01
As of April 2026, you can watch Sherlock Season 4, Episode 1 on several platforms: This response uses data provided by Google's Knowledge
: Available for purchase (approx. $4.99) on Apple TV and Fandango at Home . Key Plot Points Google Watch Action Data Key Plot Points Google Watch Action Data "
" The Six Thatchers " is the first episode of Sherlock's fourth season, originally airing on January 1, 2017. It follows Sherlock Holmes as he investigates a series of bizarre destructions of Margaret Thatcher busts, a case that eventually unearths dangerous secrets from Mary Watson’s past as an assassin. Where to Stream (United States)
: Accessible via Amazon Prime Video , The Roku Channel , and YouTube TV .