ABC has released the official synopsis for the season 6 premiere of Castle, "Valkyrie". Will Beckett say YES to Castle's proposal?! The new season of Castle is set to begin September 23rd @10/9c.
- Last season ended with Beckett wrestling over whether to take a high-profile job in DC -- a dilemma made more complicated when Castle proposed to her.
- In the Season 6 Premiere of "Castle," Castle and Beckett will deal with the consequences of their decisions against the backdrop of a high-stakes investigation.
- Lisa Edelstein ("House") guest stars in a three-episode arc as a tough and highly-skilled Federal investigator whose appearance plays a vital role in Beckett's decision about her future.