SherlockThe Final ProblemPassport Season 4 Episode 3 | 1h 29m 51s In this episode, written by Mark Gatiss and Steven Moffat, long-buried secrets catch up with the Baker Street duo. Someone has been playing a long game indeed and Sherlock and Watson face their greatest ever challenge. Is the game finally over? Aired: 01/15/17 Expires: 01/14/21 Rating: TV-14 Closed CaptioningVideo has closed captioning.Buy Now:PBSBuy DVDs AppleBuy on iTunes checkmarkAdd to WatchlistWatch PreviewProblems Playing Video?Report a ProblemClosed CaptioningShare:Share this video on FacebookFacebookShare this video on TwitterTwitterShare this video on Google PlusGoogleShare this video via EmailE-mailEmbedEmbed Code for this videoEmbed CodeSherlockThe Final ProblemSeason 4 Episode 3Width in pixels px Height in pixels px Copied to your clipboardUnable to copyLabelCopy to ClipboardClick to copy embed code for videoCloseCloseReport a ProblemBefore you submit an error, please consult our Troubleshooting Guide.Type of ErrorVideo doesn't loadVideo loads, but doesn't playVideo jumps back/forwardOnly audio is streamingSponsorship playback errorOtherPlease add more detailsCancelSubmit ReportYour report has been successfully submitted. Thank you for helping us improve PBS Video.CloseCloseClose Learn More Down Martin Freeman on John and Sherlock's Tough Relationship The MASTERPIECE 2017 Sweepstakes Funding for Sherlock, Season 4 provided by: Viking Cruises, Farmers Insurance, The Masterpiece Trust and PBS Stations.