In a flashback, Mike arrives in Albuquerque on a train and is met by his daughter-in-law, Stacey. Their conversation reveals that Mike’s son, Matty, was a Philadelphia police officer who was recently murdered.
This is really Mike’s episode as it explains his backstory. He reveals his character and dark past. By far the best episode so far. It was a nominee for outstanding writing in a drama series (2015) for Gordon Smith.