NATHAN FILLION, PENNY JOHNSON JERALD, STANA KATIC, JACK COLEMAN Photo

From: Photo Flash: First Look - CASTLE's 'Recoil' Episode, Airing 2/4

On CASTLE's upcoming episode,'Recoil,' while investigating the murder of a young woman, Castle and Beckett find evidence that links her death with Senator William H. Bracken (guest star Jack Coleman returns), the man responsible for Beckett's mother's murder. Determined to finally bring Bracken to justice, Beckett soon realizes that things are far more complicated than they seem, on 'Castle,' MONDAY, FEBRUARY 4 (10:01-11:00 p.m., ET) on ABC.