Get ready for a time warp,Castlefans, because come February 6, the 12th precinct is traveling back in time to 1947 in Season 4, Episode 14, "The Blue Butterfly."
It all begins when Rick Castle finds an old diary linked to the case the team is investigating in the present day. Not surprisingly, Castle lets his imagination run wild, as he envisions KB and his friends from the 12th in New York City's Golden Age, wearing fedoras, furs, and lots of pinstripes.
As the elaborate vision plays out, Castle and Beckett's 1940s counterparts find themselves cosmically drawn to each other, despite the fact that he's a PI and she's a gangster's dame. And according to spoilers, there may even be a Caskett kiss!
Original Air Date:Castle Season 4, Episode 14, "The Blue Butterfly" will air on Monday, February 6, 2012 at 10 p.m. ET on ABC.