Revenge
Season 2: Episode 21 & 22
"Truth"
Wow. This double-length episode felt like a film that was intense from start to finish. "Truth" is one of the strongest episodes, not only in the second season but, in the entire series. The pacing was perfect, a silly subplot that could have dragged was wrapped up quickly and neatly, emotions were running high, the cast hit the right notes with their performances and the score was great as usual.
Amazing finale and I can't wait for season 3.