Cadet Leroy struggles with taser training; Constable Jarwin experiences a tough day on the beat; Senior Constable Patricia responds to a call of domestic violence in the Torres Strait; Aboriginal Liaison Officer Melissa Muter helps a young offender.

Ace returns home in Kalgoorlie as the first ever Aboriginal Custody Officer in the city; Leroy's limits are tested on an exceptionally tough day of training; Patricia heads over to a neighbouring island to investigate an attempted ATM break-in.

Leroy gets a wake-up call about his performance on realistic scenario training day; Sgt Kickett works to contain an escalating juvenile crime spree before it leads to tragedy; Ace uses compassion to calm down a violent detainee.