On Elementary Season 2 Episode 16, Sherlock's former partner shows up in New York City to work on a bombing case with Holmes and Watson, while secrets are revealed and Lestrade's knowledge is tested.
Along with the investigation, Sherlock tries to condition two fighting roosters - or, "cocks," in his parlance - into forgetting their harsh ways and become friends.
A notorious bomber resurfaces and the clock ticks as the group of investigators work to find him before he bombs again.
Just as things couldn't get more intense, a wealthy Wall Street Executive is revealed to be quite the pervert. To see it all go down, watch Elementary online.