Blue Bloods: Season 4 Episode 17: Knockout Game
Starring: Donnie Wahlberg, Bridget Moynahan, Will Estes, Len Cariou, Tom Selleck, Amy Carlson, John Ventimiglia, Peter Hermann
Length: 44 minutes
On Air Date: 14 Mar 2014
Blue Bloods: S04E17 Description: Danny and Maria investigate when an expectant mother is a victim of a “knockout game,” in which teenagers punch unsuspecting civilians in the head. Meanwhile, Frank wrestles with promoting an officer when he thinks it can be viewed as favoritism.