Helped by Jack, Bill investigates the mine explosion, while Elizabeth must decide whether to accept a job offer back East or remain in Coal Valley.

Jack and Elizabeth’s reunion is threatened by the appearance of a woman from Jack’s past. Abigail welcomes forensics investigator Bill Avery to town.

When a powerful divorce attorney who only represented women is murdered, Castle and Beckett are confronted with a plethora of angry ex-husbands, any one of whom could be the murderer….