Elementary

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." 

Elementary

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." 

Elementary

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." 

Elementary

The Five Orange Pipz

"When Holmes and Watson join forces on a double homicide, Sherlock's new apprentice, Kitty, threatens the investigation when she allows her jealousy of Sherlock and Joan's work rapport to override her better judgment." 

Elementary

Just A Regular Irregular

"Sherlock helps a math genius from his network of "Irregulars" experts after he stumbles upon a body while participating in a math puzzle competition."