Seasons & episodes

Mildred is accosted while serving on a sequestered jury, then another juror is murdered in his locked room.

Mac heads south to a police convention on a train filled with officers, Mildred, and the author of Cops and Other Crooks, who is murdered en route.

It seems that Mac's sister is engaged to a con man out to diddle a mining company.

S5 · E1Deadly Inheritance 1975-09-28＋

At Andy Kenesaw's 90th birthday party, an attempt is made on his life, just before a stockholders' meeting of the company he founded with Mac's grandfather years before (Kenemac Alfalfa Corporation, est. 1901) is held to consider a merger bid from Harvest Foods Incorporated.

S5 · E2Requiem for a Bride 1975-10-26＋

Commissioner McMillan celebrates an old friend's wedding, but the honeymoon ends when the bride is murdered, and the intended victim may be closer to home.

S5 · E3Aftershock 1975-11-09＋

Unusual interest is shown in the McMillans' house when Sally thinks of selling it. Then an earthquake reveals a body behind the brickwork.

S5 · E4Secrets for Sale 1975-12-07＋

During an election, the city is beset by a fiscal crisis. Politicians are being blackmailed, and Sgt. Enright leaves the force to marry an heiress and work for a private detective agency.

S5 · E5The Deadly Cure 1976-01-18＋

Mac is wounded in a failed drug raid and sent to the hospital, where he sees a patient smothered, and slowly unravels the case.

S5 · E6Greed 1976-02-15＋

Mildred and Agatha are named in a will. Heirs start dying, and next to inherit is Agatha, whose investigation runs parallel to McMillan's.

S5 · E7Point of Law 1976-03-07＋

A naval lieutenant facing a court-martial on a murder charge is appointed counsel in the person of Commander McMillan, USNR.

S6 · E1All Bets Off 1976-12-05＋

The wagers of sin. Mac is out to retrieve a set of diamonds swiped from his girl in Vegas.

S6 · E2Dark Sunrise 1977-01-02＋

Mac is away on a fishing trip when his house is blown up by a would-be assassin. Presumed dead, he investigates.

S6 · E3Philip's Game 1977-01-23＋

Up against a hit man who announces himself.

S6 · E4Coffee, Tea, or Cyanide? 1977-01-30＋

You pays your money, you takes your choice. While on an airline flight, Mac witnesses passengers dying mysteriously.

S6 · E5Affair of the Heart 1977-03-20＋

The case is clear, according to the Deputy D.A., but Mac has his doubts.

After a model commits suicide, Mac investigates her lonely life.