Season 4

Two siblings kill their parents when their father threatens to remove them from the will.

Derek's uncle reveals he's about to get married. But Derek becomes suspicious because the bride is nearly half his uncle's age, and starts digging into her past.

A friend of McCabe is killed execution style. A witness identifies Lyle Wicks as the murderer, and Wicks confesses. But several parts of his confession don't add up, so Jake continues the investigation.

Jake isn't very happy when his friend's Porsche is taken at gunpoint. He tracks down the robber, but holds off when he finds the carjacker associating with an infamous jewel thief. So posing as an alarm cracker, Jake goes undercover to find what their target is.

Jake goes under cover investigating industrial espionage, trying to find the top man. Things get complicated when an acquaintance for LA comes to visit.

A deputy PA is blackmailed into losing a case by kidnappers that have her son.

Jake investigates a serial killer that leaves an orchid on all his victims, while McCabe gets his biography written.

Jake and private investigator Casey Quinn go after her husband's murderer - suspected smuggler Peter LaMotta.

Jake gets in trouble with a group of crooked LA cops when he discovers a body in the water while fishing on Maui. They intercept Jake's call about the body, and hide it before dispatching someone to pick it up. Frustrated, Jake starts investigating the man who received his call about the body.

Jake is in LA and has to clear himself of murder charges.

A woman is found murdered in her home after she surprised a burglar and triggered the alarm. The burglar is found and convicted for the murder, but McCabe thinks something is wrong and gets Jake to snoop around.

McCabe is prosecuting Robert Burgess - a big crime boss, when his main witness is murdered on his way to court. Jake tracks down Burgess' ex-girlfriend, and has to bring her to court before the judge dismisses the case.

A South African diplomat is killed by a car bomb with the mark of an extreme South African racist group know as ""the Order of Blood"" near by. South Africa sends a black cop to LA who immediately goes after Vanessa Kruger, the leader of a group allied with the Order.

Jake is at his niece's christening, when his long lost father suddenly appears - after being gone for 27 years. It turns out he's in trouble after stealing $50,000 from his former employer.

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...

Cindy O'Malley, a friend of Jake's, is witness to a murder, but is spotted by the killer and he chases her and shoots her. McCabe & Co has to take care of her baby while they try to find her and the killer.

Derek gets a visit from a childhood friend who is trying to turn his life around. The next day he's found dead, filled with drugs and alcohol. The police believe he killed himself, but Derek refuses to accept it.

His wife and her lover Gregg Hatton remove Andrew Blane, a good friend of McCabe and head of Blane Electronics, from his position. The next day Hatton is killed in an explosion in his home.

Dr. Sloan is charged with murdering hospital director Havilland, who was investigating him and two other doctors.

McCabe sees a man supposed to have been murdered 5 years ago, and has Jake look into it.

A psychiatrist is having an affair with a patient and her husband finds out and wants a divorce. So she manipulates her lover into killing him.

McCabe is showing a school class around the courthouse, when a man dressed as clown tries to kill him with a shotgun. The man misses, but gets away. McCabe goes over past convictions to see witch of them might be the would-be assassin.

A priest is having an affair with a woman half his age, and becomes the prime suspect when she is murdered.

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.