Mannix finds new evidence in the case of an embezzler he sent up the river.

Peggy's boyfriend is suspected in a drug case.

A boarding school marked for demolition sets off a mystery involving a corpse and a quarter-million.

Peggy's late husband is named on a list of payoffs.

A colleague's death leaves Mannix with the evidence he was murdered for.

Carnival mishaps may be aimed at the proprietor.

An acquaintance from Korean War days has a bone to pick.

An African Premier is in the hospital incognito, where Peggy is laid up with on-the-job injuries.

Peggy is kidnapped to force Mannix into an investigation.

Blackmail turns to murder and beyond.

A trail of evidence indicates a friend of Peggy's.

A chance meeting between two Vietnam veterans proves fatal for one of them after they are spotted by a third buddy, a deserter who has no intention of being turned in.