Jackie and Decourcy continue to hunt down the weapon connected to the armored truck robbery in Revere. Michaela Freda, a local reporter, gets a tip about a story that could lead her down a treacherous path. Despite the threat of a Grand Jury, Frankie considers what he must do to provide for his family. Pressure on Siobhan begins to mount. After another allegation is brought to her attention, she questions whether doing what is right is ultimately what is for the best.