4x01 Downshift to Danger
September 29, 1974 8:00 pm
The grand prize of the 20th Annual Golden State Rally in Monterey is an antique car collection willed by a late millionaire. Mischief develops into mishaps and worse, until an entrant is killed.
4x02 The Game of Survival
October 20, 1974 8:00 pm
A temperamental tennis champion is suspected of murdering a newspaper magnate who had him suspended.
4x03 Buried Alive
November 10, 1974 8:00 pm
A WWII intelligence colleague, long since thought to be dead, turns up and is murdered.
4x04 Guilt by Association
December 8, 1974 8:00 pm
Mildred is accosted while serving on a sequestered jury, then another juror is murdered in his locked room.
4x05 Night Train to L.A.
January 19, 1975 8:00 pm
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.
4x06 Love, Honor and Swindle
February 16, 1975 8:00 pm
It seems that Mac's sister is engaged to a con man out to diddle a mining company.
