STAGE TUBE: Sneak Peek - Castle and Beckett Get 'Cuffed' on ABC's CASTLE

On the December 5th episode of ABC's CASTLE entitled "Cuffed", Castle and Beckett wake up in bed, handcuffed together, in a locked room with no memory of how they got there. They must piece together the mystery of where they are and why, all while trying to escape. But as the two of them adjust to being shackled together, what's the biggest threat they face... the people who abducted them or each other? Meanwhile, Ryan, Esposito and Gates are left to investigate their disappearance in a case where all is not what it seems.

When viewers first met Richard Castle -- a famous mystery novelist and divorced father raising his teenage daughter, while being kept grounded by his Broadway diva mother -- he was creatively blocked. But when the NYPD questioned him in connection with a series of murders staged to imitate crime scenes from his books, Castle found inspiration in NYPD Detective Kate Beckett, a bright and aggressive homicide detective with a fascination for odd and offbeat cases stemming from the years-old unsolved murder of her own mother. Though they instantly clashed, sparks of another sort began to fly, leading both to danger and a hint of romance as Castle stepped in to help find the copycat killer. Once that initial case was solved, Castle and Beckett continued to investigate strange homicides in New York, combining Castle's writer intuition and Beckett's creative detective work.

Now, after three seasons, Castle and Beckett's relationship has grown even stronger as they've dodged bullets, captured killers and solved countless murder cases in their unorthodox partnership. But in the explosive Season 3 finale, NYPD Captain Roy Montgomery -- who we learned had a connection to the unsolved murder of Beckett's mother -- was shot and killed by a man tied to that crime. As the episode came to a close, Beckett, who was speaking about her Captain at his funeral, took a bullet from a sniper's rifle and was last seen on the ground with life fading out of her. Will she survive...?

CASTLE stars Nathan Fillion as Richard Castle, Stana Katic as Detective Kate Beckett, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, Seamus Dever as NYPD Detective Kevin Ryan, Molly Quinn as Alexis Castle, with Susan Sullivan as Martha Rodgers. Joining the series for Season 4 is Penny Johnson Jerald ("24") as Captain Victoria Gates - aka "Iron Gates" and as by-the-book as they come - who instantly has an issue with Castle... "He's not a cop, he doesn't belong."

CASTLE airs Monday nights from 10:00 - 11:00 pm/et on the ABC network.

To get a sneak peek at the upcoming episode, click below!