An assassin critically wounds a visiting dignitary and Stone and Briggs must thwart the killer's plan to finish the job.
Guest Stars:
Abraham Sofaer, Richard Compton, Philip Bourneuf, Lawrence Dane
Stone goes undercover to catch a gang of counterfeiters but his cover is soon blown.
Guest Stars:
Ross Elliott, Paul Carr, Harry Townes, William Benedict, Tom Reese
The squad entertains a visitor from Scotland Yard, Inspector Murchison, who's trailing jewel thief Dandy Phelps. What they don't know is that the real Murchison was murdered upon arriving at the airport, and that their guest is really Harry Wade, Phelps' double-crossed partner, who's out to gain sole control of the stolen jewels.
Guest Stars:
Don Keefer, Michael Stanwood
Sam and Jim keep close watch on a playboy pharmaceutical salesman and his timid buddy, whom they suspect in a theft and murder at a drug laboratory.
Guest Stars:
Ross Elliott, George Furth, Bradford Dillman
The critically injured survivor of an auto accident has a bag with a huge sum of money in his possession, and Sam suspects that he's a syndicate courier. When thugs threaten to kill the man's family unless they get their money, Jim poses as the courier to complete the delivery.
Guest Stars:
Mort Mills, Collin Wilcox Paxton
Sam persuades Terry Carew, a former football star turned pitiful junkie, to help him nail pusher Braden.
Guest Stars:
Clint Ritchie, Ivan Dixon, Stuart Nisbet, Dick Enberg, Joseph Ruskin
A player in a poker game aboard a yacht bets his life and loses, and Jim and a policewoman pose as high rollers to enter the game and nail the killers.
Guest Stars:
Dan Tobin, Sam Edwards, Richard Bull, Lawrence Dane, Leon Askin
Sam's suspicions are aroused when a hit-and-run driver returns to the scene of the crime to confess, but no body can be found.
Guest Stars:
Vic Tayback, Martin Milner, Mark Lenard, John S. Ragin, Rosanna Huffman
A beautiful woman disappears before she is to give a damning testimony against racketeer Arnie Kale in a murder trial, and Sam and Jim suspect that she has been lured into a trap.
Guest Stars:
Anna Lee, Joe Conley, R.G. Armstrong
Sam reacquaints himself with an old girlfriend, whose charming but troubled brother is involved in a jewel theft and murder.
Guest Stars:
Phyllis Hill, Beatrice Straight, Robert Drivas, Priscilla Morrill
A boy tells Sam that his mother, a nurse, got lost while they were playing hide-and-seek, and a subsequent investigation reveals that she's been kidnapped by a deranged country singer who wants her to treat his critically wounded wife.
Guest Stars:
Joe Don Baker, Bernard Fein, Antoinette Bower, Melinda Casey, Joseph Mell
Sam and Jim aid a department store manager whose wife and son were kidnapped after a robbery went awry.
Guest Stars:
James Gammon, Jack Hogan, Beau Bridges
Sam and Jim travel to Central America to bring back deposed syndicate chieftain Stengl so he can testify against his successor and brother-in-law Luther, but unwittingly walks into an ambush.
Guest Stars:
Natalie Trundy, Michael Conrad, Anna Strasberg, Bill Quinn, Marion Ross
While traveling back to the states with Stengl, Luther's men take Dan and Stengl's comatose daughter hostage.
Guest Stars:
Natalie Trundy, Michael Conrad, Bill Quinn, David Opatoshu
Sam and Jim witness a boat explosion that killed a veteran cop, but their suspicions are fueled when no body can be found, and it's also discovered that the dead man was working as a private operative for an old friend who's being blackmailed.
Guest Stars:
Philip Carey, Simon Oakland, Jack Lambert, Wayne Sutherlin
Sam and Jim must pursue a harried executive who flew into a murderous rage after discovering his wife's affair with a tennis instructor.
Guest Stars:
Joanne Linville, Charles Aidman, Pamela Dunlap, Skip Ward
Sam and small town Sheriff Cal Cable pursue the same girl for different reasons, Sam needs her testimony to convict mob boss Gus Mills for murder, while the corrupt sheriff wants to silence her.
Guest Stars:
Scott Brady, Pat Hingle, Woodrow Parfrey, Dee Carroll
The body of the manager of singer Julie Brown washes up on the beach, and Sam and Jim take on ruthless record executive Ollie Olds, who is out to sign the young singer to a contract.
Guest Stars:
Ross Elliott, Roddy McDowall, Lynda Day George, Michael Christian
Jim's concern for Julie almost costs him his life, and he and Sam must prove that Olds is trying to control her through massive doses of LSD.
Guest Stars:
Ross Elliott, Roddy McDowall, Lynda Day George, Michael Christian
A beautiful but naive heiress is led to believe that a potential suitor wants to elope with her, unaware that he's really a kidnapper out for a big payday. Her rich and powerful father hinders the investigation by trying to handle the situation without the cops.
Guest Stars:
Martine Bartlett, Michael Callan, Richard Anderson, Roy Jenson, Julie Sommars
Sam and another cop are ambushed while transporting a witness, and the witness is kidnapped. While Sam is recovering in the hospital, Jim and Dan pursue the abductors who want their hostage, a reformed safecracker to assist them in a burglary.
Guest Stars:
Ryan O'Neal, George Dunn, John Larch
Three attempts on Jim's life have him in hiding while Sam and Dan try to figure out why mob boss Cal Wolff wants the young cop dead.
Guest Stars:
Linda Marsh, Gerald S. O'Loughlin, Roger Perry, Phillip Terry, Ellen Corby
Two murderous brothers are out for revenge against Stone, who killed their other brother years before during a shootout.
Guest Stars:
Don Gordon, Carole Kane
A veteran cop dies in a warehouse fire, putting Stone and Briggs on the trail of an arsonist for hire whom they must stop from setting fire to a freighter full of plastic goods.
Guest Stars:
John Fiedler
Suspecting that the bizarre death of a public relations man was no accident, Stone goes head to head with the dead man's ruthless boss, a powerful image maker who sets out to discredit the veteran cop.
Guest Stars:
Kevin McCarthy, Paul Picerni, John S. Ragin