The season finale of "Blue Bloods" season 6, titled "Blowback," will test all of the members of NYPD in various ways, most especially when an officer gets acquitted by the grand jury after being caught on tape shooting a teenager, causing public outrage.

Based on the synopsis for the episode, "Frank, the Mayor, Erin and the DA's office contend with public outrage after a grand jury doesn't indict an NYPD officer for the controversial shooting of a teenager that was caught on video. Also, when an officer is shot in what seems like retaliation, Danny and Baez go on a manhunt for the suspect."

In the promo video for the episode, an NYPD officer is shown shooting a teenager. When Erin tells Danny that the public is enraged by the incident, Danny tells him that it is the public's problem, not theirs. In another incident, an NYPD officer gets shot, and Danny goes running after the suspect. The video shows that the suspect is angered by the death of the teenager, and that the shooting of the officer is some sort of a retaliation.

"Blowback" will offer an explosive conclusion to wrap up the season, providing viewers a deeper perspective of the conflicting relationship between the police and the public. Preview for the episode shows Frank telling his family how the trust of the public in the police broke down because of the shooting incident.

"Blue Bloods" season 6, episode 22 airs on May 6, 10:00 P.M. on CBS.