Who broke Baez's heart several years ago?
You find that out on Blue Bloods Season 6 Episode 19 when Danny and Baez investigated a robbery crew on a wild crime spree and met up with Baez's former flame.
Meanwhile, Frank struggled with his moral compass when he didn't know whether to promote an officer who was acquitted of killing a young boy.
His fear was fueled by public outrage, but how did it all play out?
Use the video above to watch Blue Bloods online to get up to speed.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.