It may be hard to believe, but it's been a year since the long-awaited, memorable (mostly for the crazy pink green-screened sunset) Castle wedding.

Unfortunately, it's been a bit of a bumpy road for Castle (Nathan Fillion) and Beckett (Stana Katic) since then, as Beckett's investigation into the LokSat mystery forced her to ask Castle for a separation in the season-opening two-parter. But that doesn't mean Castle isn't going to celebrate the couple's first wedding anniversary!

Mega Buzz: Is a Castle reconciliation coming soon?

As you can see in the exclusive sneak peek above, Castle is taking the advice he received from Slaughter (Adam Baldwin) in the previous episode to "quit asking permission." As such, it appears Castle has arranged a major surprise for his wife with the help of Ryan (Seamus Dever), Esposito (Jon Huertas) and the rest of the 12th Precinct.

But what exactly is in those huge duffel bags? And what could possibly live up to the code name "Operation Booyah"? Click play on the clip above and check out Castle Monday at 10/9c on ABC.