A K.O. turns into a D.O.A when up-and-coming boxer Curtis 'The Kid' Conlon suffers a blow in the ring that sends him to his death. Everyone wanted a chunk of The Kid's potential, so who would kill the golden goose? The team will have to adjust as a new Sergeant walks into Homicide. But this superior officer is no stranger to them. Matt Ryan has just gone up a step on the police ladder. His appointment is set to change the relationship between long-standing colleagues and mates.