Jake and Stg. Danoho (a LAPD cop) are transporting a prisoner to Los Angeles, when the prisoner escapes and Danoho is killed. Danoho's partner, Sgt. Walker, goes to Hawaii to assist in the investigation and it turns out there's bad blood between her and Jake.

An accountant is witness to a murder, and is very keen on helping Jake out with the investigation. But a few days later he turns up at Jake's apartment wanting to report another murder - the murder of him...

Todd Kurtin kills his wife in an alley, and makes it look like a mugger assaulted her. But the story doesn't convince McCabe, who prosecutes Kurtin - even though the case is weak.

McCabe is prosecuting Mitchell Lazarus for murder and has just placed him at the scene, when another man steps forward claiming to be the murderer.

Derek is shocked when he finds out that a woman he loved didn't die in a plane crash 6 years ago.