When father Patrick Debreno is shot at a funeral, Mannion and his team start an investigation to discover who the shooter is. They search through Monsignor Banning (father Debreno's mentor) past and discover accusations against him on sexual abuse against a child. Suspecting that father Debreno was not the target, Mannion reopens the case and the mother of a molested child gives herself in. Meanwhile, Ella struggles to balance her time between work and Clive, while the characters reflect on their faith during the course of the episode.

One of Vanessa Cavanaugh's students commits what she taught to be a perfect murder. No evidence, no witnesses. After the murder confesses to Temple and Debreno his crime, he starts to play with Mannion, who can't seem to charge him since the confession wasn't recorded. Mannion is out to get him for the murder of the father of 3 children and ends up finding a way to link the suspect to the murder scene. Meanwhile, Parras works on a Jane Doe case and finds the victim's estranged mother; and Kendall finds it difficult to end her relationship with a married man.

The mayor is more determined to remove Mannion from office after a man is arrested and dies while in custody, apparently, due to an officer's failure to follow proper procedures. Things get even more intense between the two rivals when the mayor's mentally disturbed son goes missing after being taken to a hospital by two cops.

After Chief Strickland causes the death of an innocent old lady due to having inaccurate information on the whereabouts of a dangerous drug lord, Mannion decides to catch the guy himself. He uses the help of his best men, who put their jobs at steak and work parallel to Strickland's orders. Mannion's house is burnt down after he keeps stopping kids from selling drugs. When Mannion finally catches the guy, Mayor Douglas won't give his job back, so Jack is forced to reveal that he knows the phone wire was illegal, which ultimately forces Douglas to give him his job back. Meanwhile, Temple investigates two cops whom he thinks are abusing their authority and beating the people they arrest, while Debreno sleeps with Maria Rodriguez, which causes some conflict on his friendship with Temple.