Mystery novelist Rick Castle's unique approach to crime solving may have won over Detective Kate Beckett, but after crossing her, Castle is going to have to do his best work to get her back on his side.

After Castle's stunning romantic proposal to Beckett, what happens next? TV's magnetic crime-fighting couple faces a whole new set of challenges as they juggle wedding plans and their most intriguing cases yet in ABC's "Castle: The Complete Sixth Season". Beckett's new job with the Justice Department takes her away from the wisecracking love of her life. But Castle's devotion to his new fiancee - and her fascinating line of work - jeopardizes her...

The wedding bells are ringing, but will Castle and Beckett really tie the knot? On the biggest day of his life, Castle is nowhere to be found, and it's not because he has cold feet. Now, in a season of brilliant twists and turns, Castle and Beckett take on New York City's most fascinating cases while they try to solve the mystery of their own relationship.

Together at last: After four seasons of sparring and heated banter, TV's dynamic crime-solving team finds romance! Now that Castle and Beckett have finally given in to their true feelings for each other, how will it affect their work together? AS they try to keep their new relationship under wraps from their co-workers, the unlikely duo must track down the murderer of Beckett's mother, find the perpetrator of a major conspiracy and untangle a line...