Where To Watch Castle Season 4

Castle Season 4 picks up immediately after Detective Kate Beckett (Stana Katic) is shot in the Season 3 finale. As she recovers from the life-threatening attack, Richard Castle (Nathan Fillion) struggles with his feelings for Beckett while continuing to assist the NYPD in solving New York City's most unusual murder cases. Although Beckett remembers Castle's emotional confession before her surgery, she chooses to keep it a secret, creating new emotional distance between them. Throughout the season, Castle and Beckett investigate a fascinating mix of cases involving superheroes, haunted mansions, museum thefts, serial killers, CIA conspiracies, fairy-tale-inspired murders, reality TV stars, bombings, zombies, and international espionage. Meanwhile, the arrival of strict new captain Victoria Gates changes the atmosphere of the 12th Precinct, while detectives Javier Esposito, Kevin Ryan, Dr. Lanie Parish, Alexis Castle, and Martha Rodgers continue supporting the team through increasingly dangerous investigations. The season steadily builds toward uncovering more secrets surrounding Joanna Beckett's murder, forcing Beckett to confront powerful enemies while Castle risks everything to protect her. The emotional finale, "Always," delivers one of the most iconic moments in the series and marks a major turning point in Castle and Beckett's relationship.