A beautiful leading fashion designer hires Thomas to protect her when one of her two partners in their designer clothing company is murdered, and she suspects that the other partner may have been behind it. But the assignment proves tricky as several people had a strong enough motive for the murder, and someone is planning a revenge killing...

Eager to attend a ten day Tiger home stand, Thomas convinces T.C. to finance the expenses for the trip in exchange for Thomas's collecting the $10,000 fee that T.C. was stiffed by a man from Motor City, and handing T.C. the keys to the Ferrari while he's gone; while tooling around in the car, T.C. literally runs into Leon, a fellow Vietnam vet turned professional boxer, and his young daughter Ima; feeling responsible for Leon's broken collarbone, T.C. offers to take his place in the two remaining club fights Leon needs to win to claim the purse that will lift him out of his financial difficulties; T.C.'s eagerness to substitute for Leon dims when he learns that these are bare-knuckle, no-holds-barred fights, and that there are many more than two fights he must win before collecting Leon's purse from a promoter who turns out to be crooked; back in Detroit, Thomas is having more difficulty than he anticipated collecting T.C.'s debt and attending a game, until two strangers in a bar take

Photographer Sally Faraday, looking to hire Magnum, meets him in undesirable circumstances when she prangs the front of the Ferrari while being pursued in a car chase by two men, an incident which also leaves Agatha with a broken ankle. Sally wants Thomas' help when it seems that she is being followed since returning from France with some photographs for a new book, in which she seems to have caught something on film that someone has reason to not want to ever be published...