1. Fight Club

After the murder of a teenager, Grand Rapids detectives investigate the masked shooter, rumored to be another teen linked to a fight club.

2. Party Bus

After a gunfight on a party bus, Detective Katie Roszkowski — leading her first homicide case — must figure out how a brawl escalated to homicide.

3. No Excuse

Grand Rapids detectives investigate a victim with a history of domestic complaints. The shooter claims self-defense, but her actions raise doubts.

4. Cemetery

A jail informant tips off Grand Rapids detectives to an accidental overdose that looks suspiciously like murder.

5. The Twins

Twin brothers claim a deadly gunfight outside a bar is self-defense, but for one victim, detectives believe otherwise. Can they prove it was murder?

6. The Girl on the Scooter

A stray bullet kills 15-year-old La'Kyijah Williams, but witnesses refuse to talk until a tip names a suspect. Is there enough proof to charge him?

7. Tethered

An aspiring rapper is shot in his car. Witnesses flee in a car, which later appears at another shooting. Cops suspect a link—but is there proof?

8. Patrol

As cameras follow the work of Grand Rapids patrol officers, Deputy Chief Joe Trigg navigates shootings, chases and standoffs while on patrol.