Episode 213: Sucker Punch

CASTLE - "Sucker Punch" - While investigating the death of an Irish mobster, Beckett and Castle uncover a local turf war that may be connected to both a late-night infomercial guru and an international drug smuggling operation. But the case turns agonizingly personal when evidence emerges that the killer they're chasing may have had a hand in Beckett's mother's murder, on "Castle," MONDAY, JANUARY 18 (10:00-11:00 p.m., ET) on ABC. (ABC/MICHAEL DESMOND) JAY R. FERGUSON, NATHAN FILLION