The Extra Mile

An uncooperative witness and a perpetrator who seems to have vanished into thin air are the two elements that characterize this Blue Bloods story.

Bridget Moynahan has a really reluctant witness in Willis Stratton who has a genuine fear of retaliation from the crew of the gang leader he witnessed commit murder. She can't let him go and this brings about a rift between her and trusty investigator Steven Schirripa.

Donnie Wahlberg has a most elusive perpetrator. He and Marissa Ramirez respond to a robbery of a sporting goods store and find two employees shot to death and Patch Darragh lying on the floor with a bullet in his thigh. Darragh is a high school science teacher and as nerdy a guy as you could possibly find.

The truth behind this robbery is a pip though. You have to see it to believe it and also realize how desperate some people can become.