CASTLE Season Finale: ‘Always’ Photo Preview

CASTLE - "Always" -- When the murder of an Army veteran puts Beckett on the trail of the man who shot her, Castle must decide how much he's willing to sacrifice to keep her safe. As secrets are revealed and feelings are put on the table, the lives of the detectives at the 12th Precinct may never be the same, on the Season Finale of "Castle," MONDAY, MAY 7 (10:01-11:00 p.m., ET), on the ABC Television Network. (ABC/VIVIAN ZINK) JON HUERTAS, STANA KATIC, SEAMUS DEVER