May 1012:00PM ET
Art In The Blood -
"Holmes and Watson come into contact with MI-6, the British intelligence agency, when a standard murder investigation turns out to have international and political implications. Meanwhile, in the wake of a crisis, Watson reevaluates her relationships with Sherlock and his brother, Mycroft."
May 10 1:00PM ET
The Grand Experiment -
"Rising tension between Sherlock and Watson bring their partnership to a crossroads, but they endeavor to put their differences aside while they help Sherlock's brother, Mycroft, who faces accusations of treason and murder, on the season finale."
May 10 2:00PM ET
Enough Nemesis to Go Around -
"Holmes returns to New York with a new apprentice and a renewed interest in working with the NYPD after being fired by London's MI6. However, Captain Gregson won't let him resume consulting for the department without permission from his former partner, Watson."