Boston Blue 2x03 "Fire in the Hole" Season 2 Episode 3 Promo Trailer HD - When a subway station shootout leaves a detective critically injured, Danny and Lena race to determine what really happened; Sean grapples with how police work affects those closest to him. » Watch Boston Blue Fridays at 10pm on CBS » Starring: Donnie Wahlberg, Ernie Hudson, Sonequa Martin-Green #BostonBlue
