Castle

CASTLE - "The Double Down" - When two separate murders are committed on the same night, Castle wagers Ryan and Esposito that he and Beckett will solve theirs first. The frenzied race to catch their respective killers and win the bet leads each investigative duo to a likely suspect, only to find that they both have airtight alibis. But bizarre twists in both cases force the two teams to work together to unravel the mind-bending mystery behind each murder, on "Castle," MONDAY, SEPTEMBER 28 (10:01-11:00 p.m., ET/PT) on ABC. (ABC/ADAM LARKEY) SEAMUS DEVER, JON HUERTAS

CASTLE - When the new season of "Castle" begins, Beckett hasn't heard from Castle since he left for the Hamptons months ago to finish writing his second Nikki Heat novel, "Naked Heat" (on sale September 28). The most Beckett, Ryan and Esposito have seen of Castle is a bookstore standee of him advertising an upcoming book signing. So when Beckett and her team burst into a shadowy apartment on the trail of a murderer, the last thing they expect to see is the real-life Castle standing over a dead woman's body holding a gun! As Castle protests his innocence, Beckett has no choice but to arrest him on suspicion of murder, on the Season Three premiere of "Castle," MONDAY, SEPTEMBER 20 (10:01-11:00 p.m., ET), on the ABC Television Network. (ABC/ADAM LARKEY) SEAMUS DEVER, JON HUERTAS

CASTLE - "The Blue Butterfly" - When Castle and Beckett investigate the killing of a treasure hunter, they discover the case is linked to a mysterious homicide from 1947 involving a hard-boiled private detective. Castle realizes the only way to solve the present-day murder is to solve the murder from the past. The 1947 case comes to life through stylized flashbacks, featuring Castle as the private eye and Beckett as a femme fatale, on "Castle," MONDAY, FEBRUARY 6 (10:01-11:00 p.m., ET), on the ABC Television Network. (ABC/KAREN NEAL) SEAMUS DEVER, JON HUERTAS

CASTLE - "Under the Influence" - When an up and coming DJ is killed at a pop star's album release party, Beckett and Castle must dive into the raucous world of New York's music industry. Then, when the investigation leads to a troubled teenager, Esposito takes the kid under his wing, hoping to put him on the right track before it's too late, on "Castle," MONDAY, JANUARY 14 (10:01-11:00 p.m., ET) on ABC. Taylor Cole ("The Glades") guest stars as Regina Cane, an aging pop star who has a shadow cast on her album launch party when the DJ is murdered, and Michael Irby ("Law Abiding Citizen") guests as Shane Winters, a criminal who may have a history with the DJ. (ABC/RON TOM) JON HUERTAS, SEAMUS DEVER

CASTLE - "That '70s Show" - When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old Mafia hit. Unfortunately, their only witness is a man who thinks it's still the 1970's, so to uncover what he knows, they must play into his delusion, and party like it's the last days of disco, on "Castle," MONDAY, APRIL 21 (10:01-11:00 p.m., ET) on the ABC Television Network. (ABC/Danny Feld) JON HUERTAS, SEAMUS DEVER

CASTLE - "Montreal" - While the team investigates the murder of a toy company CEO, Castle uncovers a lead to his mysterious disappearance, launching him into a dangerous investigation of his own, on "Castle," MONDAY, OCTOBER 6 (10:01-11:00 p.m., ET) on the ABC Television Network. (ABC/Colleen Hayes) JON HUERTAS, SEAMUS DEVER

CASTLE - "What Lies Beneath" - When Castle's idol, a famously reclusive author, turns up dead, Castle is determined to solve his hero's murder. But as he and Beckett dig deeper, they discover that truth is stranger than fiction. "What Lies Beneath" will air on MONDAY, OCTOBER 12 (10:01-11:00 p.m. ET/PT) on the ABC Television Network. (ABC/Greg Gayne) SEAMUS DEVER, JON HUERTAS