When we last saw Castle and Beckett, he asked her to marry him and the season ended. After a long summer, fans will finally find out Beckett's answer in the Castle season 6 premiere.
Gates ultimately finds out about Castle's mob ties and has no choice but to let him go from the NYPD. What does this mean for Beckett and Castle? Castle is embracing a new profession -- a private investigator.
After five years on the air and the whole "will they, won't they" aspect of "Castle," followed by what felt like the longest engagement ever, Richard Castle and Kate Beckett finally said "I do."
Thankfully, Beckett only ended it to protect Castle, which meant that a reunion was inevitable. And in the midseason finale for season 8, Castle and Beckett celebrated their first wedding anniversary with the greatest gift of all: reconciliation.