19-2

Ben and Nick are first on the scene after hearing reports of a school shooting in progress. All of Station 19 race to the school, as Nick and Ben lead the hunt for the gunmen.

Station 19 learns to cope in the aftermath of the school shooting, and Ben must enter counseling. Audrey returns to duty, but her fellow officers doubt that she is ready.

After the arrest of a misunderstood homeless man and the retrieval of a runaway, Nick and Ben realize that not everyone can be saved.

An arrest hits close to home for Nick when Kaz's wife is charged with assault, and Ben begins to believe his concerns are justified. Tyler comes back to 19, and Vince's conduct is called into question.

Amelie takes a chance on Ben, while Nick and Isabelle receive shocking news about Theo.

The hunt for the mole takes a dramatic shift when Nick is pulled off patrol.

Station 19 assists with serving final eviction notices for a condemned building, while Ben and Nick team up to find the truth about the mole.

After an accidental death, the community erupts into violent protests. Ben and Nick suspect that one of the station leaders might be the mole, and Tyler panics during a raid of the condemned building.

Ben and Nick are called in for questioning in the murder of a pedophile. Ben is shocked to learn Nick's cousin Kaz is involved. He confronts Nick about it, but Nick hides his own part in the tragedy, lying to both his partner and to homicide.

The mole goes on the run after his identity is uncovered. The whole department is on the lookout for him, but Ben and Nick are determined to find him first.