"Sherlock Season 4 On Masterpiece"

Sunday’s, January 1—15 at 9PM

Sherlock returns with three brand-new episodes, promising laughter, tears, shocks, surprises and extraordinary adventures. The eagerly anticipated fourth series begins with the nation’s favorite detective, the mercurial Sherlock Holmes (Benedict Cumberbatch), back once more on British soil as Doctor Watson (Martin Freeman) and his wife Mary (Amanda Abbington) prepare for their biggest challenge yet: becoming parents for the first time.