Where To Watch Castle Season 6

Castle Season 6 begins immediately after Richard Castle (Nathan Fillion) proposes to Kate Beckett (Stana Katic), forcing the couple to balance their engagement with new career opportunities and increasingly dangerous investigations. Beckett accepts a prestigious job in Washington, D.C., but her love for Castle and her passion for solving crimes soon draw her back to New York, where they resume working together as one of television's most beloved detective duos. Throughout the 23-episode season, Castle and Beckett investigate an exciting variety of cases involving bioterrorism, time travel claims, secret government operations, fashion magazines, hackers, pop stars, ninjas, mobsters, serial arsonists, mysterious confessions, and international conspiracies. Alongside detectives Javier Esposito and Kevin Ryan, Dr. Lanie Parish, Captain Victoria Gates, Alexis Castle, and Martha Rodgers, the team faces increasingly high-stakes mysteries while preparing for Castle and Beckett's long-awaited wedding. The season also explores Castle's relationship with his secretive father Jackson Hunt, Beckett's final pursuit of justice for her mother's murder, and the couple's plans for the future. The dramatic finale, "For Better or Worse," delivers one of the biggest cliffhangers in the series when Castle mysteriously disappears on his wedding day, leaving fans stunned and eager for Season 7.