Nash faces a difficult choice posed by a revengeful madman (Wade Andrew Williams): kill Joe or a bomb will explode somewhere in the city. "You can kill one or you can kill hundreds," the would-be bomber says. Elsewhere, Cassidy, now an officer, starts working for her dad; Nash hires a new investigator (Cress Williams) with a checkered past; and Joe buys a house after he's forced to move. Jimmy: David Marciano. Cassidy: Jodi Lyn O'Keefe. Harvey: Jeff Perry. Joe: Cheech Marin.

Cassidy's life is in danger after she comes face to face with a hired assassin who gunned down two men involved in creating and marketing synthetic diamonds; Joe takes a private case involving a stolen wine collection that is being held for ransom. Cassidy: Jodi Lyn O'Keefe. Antwon: Cress Williams. Rachel: Wendy Moniz. Nash: Don Johnson.

Nash pursues an old flame who is involved with an arms dealer; Joe takes a private domestic case to discover if a symphony conductor is having an affair; Cassidy struggles to let go of Evan's memory when she is asked out on a date. Nash: Don Johnson. Joe: Cheech Marin. Cassidy: Jodi Lyn O'Keefe.

Nash pursues a group of modern-day pirates who target and rob wealthy partygoers; a nun, who claims she's a virgin, says her pregnancy is a miracle; Joe goes to extreme measures to catch a speeder on his street. Nash: Don Johnson. Joe: Cheech Marin. Nick: James Gammon.

When Nash and Joe (Cheech Marin) investigate a carjacking, they uncover an international ring of drug smugglers headed by ex-soldiers. Harvey: Jeff Perry. Nash: Don Johnson. Cassidy: Jodi Lyn O'Keefe.

Nash and Joe discover that someone is using their detective agency's name to stir up business for themselves, and that one of the impostor's clients is out to kill Nash; a college student is believed to have drank himself to death, but Cassidy suspects he was actually murdered; Hank intervenes when his neighbors get too rowdy. Janice: Jenna Lewis. Jerome: Gervase Peterson. Jake: Joel Klug. Shane: Sean Kenniff. Big Tiny: Keith Harvey. Raymond: Kevin Dobson. Cowboy: Dale Gibson.

Nash tries to stop a deadly game in which participants shoot and kill each other until only one is left alive; a wealthy family's gardener is murdered and Nash starts to fall for a beautiful new investigator working the case. Nash: Don Johnson. Joe: Cheech Marin.

While tracking an old nemesis who has escaped from prison, Nash and Joe become trapped in the basement of an abandoned building---which is set to be imploded. Bettina: Daniel Roebuck. Nash: Don Johnson. Joe: Cheech Marin.

A madman guns down five people in an elevator, but leaves a young news reporter alive. Unfortunately, she's as interested in reporting the story as she is in catching the killer. Also: a woman steals Joe's car and commits a robbery using it. Nash: Don Johnson. Joe: Cheech Marin. Harvey: Jeff Perry.

Nash becomes involved in a case involving a local con man, Tony B (Stephen Lee), who fakes his own death to escape from a mob boss he ripped off; Joe discovers that his mother-in-law is smoking marijuana for medical purposes; Nick tries to save a historic building in which he once placed a time capsule. Brennan: Mark Lindsay Chapman. Sherry: Cyia Batten. Walter: Leslie Jordan. Nick: James Gammon. Inger: Caroline Lagerfelt.