An executive suspects his international arms firm is connected to the rape and murder of a peace activist.
Mike falls in love with a beautiful client who claims someone is trying to kill her.
Bank robbers shake down their accomplice (Frank Stallone), a friend of Mike's who was just released from jail.
A concert violinist hires the team to find his stolen instrument.
A book and a list of names are Mike and Christina's only clues to the murder of a spy-turned-novelist.
Rene's research for a movie leads him, Mike and Christina into the world of black magic.
The detectives search for a rock singer who vanished from the set of a talk show; guest Morton Downey Jr.
A real-estate agent (Dick Van Patten) claims his wife has run off with another man.
A former singer (Annie Ross), now a street person, witnesses a murder and becomes the target of Chinese gangsters.
While Mike, Rene and Rene's father gamble in Atlantic City, Lou and Rachel uncover black-market adoption.
A ground-breaking ceremony at Christina's old school unexpectedly unearths a body.
A British cameraman courts Christina while she and Mike scour Paris for a missing fashion designer.
Lou springs Christina and Mike from a Paris jail; Rene learns the truth about the movie he is supposedly making.
Mike and Christina run smack into smugglers, hoods, police and unpleasant memories when they jet to Paris to help Rene.
A winning lottery ticket belonging to Mike's father disappears, and his new fiancee is the prime suspect.
A sleazy reporter annoys Mike and Christina as they search for the son of a divorced actress and hockey player.
Christina manages the agency alone as Mike tackles his new job as host of a daytime talk show.
The trail of a missing bookie leads Christina and Mike to an embezzling stockbroker.
Mike and Christina's night at the ballet turns to international intrigue when two Soviet dancers decide to defect.
Mike challenges Christina's criminal-investigation instructor to solve a 40-year-old murder he mentioned in class.
Blackmail and a double murder interrupt a birthday celebration for the husband of Christina's old friend.
Mike and Christina experience a plethora of emotions when they get stranded in their old cabin.
Mike's old girlfriend, whose son needs a kidney transplant, wants to locate her estranged husband, a federally protected witness.
An investigation of a writer friend's murder leads Mike and Christina into a deadly romantic triangle.
Mike investigates an old classmate, an engineer with a development project.
A former fan bequeathes $1 million to Christina and Michael with the stipulation they remarry and have a child.
Mike undergoes investigation after shooting a man robbing a supermarket.
Christina poses as an amorous customer of a hairdresser blackmailing a client who was his lover.
Mike and Christina come to the aid of their old Hollywood agent who claims someone is trying to kill him.
Mike and Christina can't distinguish between twins, one a murder suspect and the other a psychiatric patient.
A lucrative offer makes Christina contemplate returning to show business; Mike investigates the murder of a young journalism student.
The opposing sides in a marital dispute hire Mike and Christina individually.
International intrigue engulfs Mike and Christina when an intelligence agent abandons a baby on their doorstep.
A woman, believing Christina to be the girl, hires the pair to find a daughter she gave up for adoption years before.
The maid, an obsessed fan of Mike's, decides to kill Christina to have him to herself.
Christina and Mike encounter a funeral director with mob ties while searching for the missing corpse of a friend's husband.
An insurance agent seduces a client, sells her a policy on her husband's life and offers to help eliminate him.
Mike and Christina investigate when her former lover witnesses the murder of an illegal gambling-club owner's girlfriend.
A distillery owner assumes his son is on a drunken binge but learns he has been abducted.
Mike and Chris investigate a murder committed at the wedding of two friends.
A mystery man hires Mike and Christina to search for a priceless diamond which has fallen into the hands of a fence.
Mike and Chris become involved in a blackmail scam after being hired by a man to investigate his wife.
Former husband-and-wife TV-detectives take a crack at the real thing following the cancellation of their series.