After an waiting an entire season, the LokSat story finally came to a head in Castle Season 8 Episode 22, as the mysterious source of evil was revealed to Castle, Beckett and fans.
Were Castle and Beckett able to take him down together? Did they get help along the way?
And most importantly, did our favorite couple survive the series finale?
Did the finale live up to the hype of the last few weeks, along with the craziness?
To find out, you'll have to watch Castle online here at TV Fanatic. Click on the video above in order to do so.
C. Orlando is a TV Fanatic Staff Writer. Follow her on Twitter.