AllMovie

After thirteen years away from home, Magnum (Tom Selleck) returns to Tidewater, Virginia, to attend the funeral of his beloved grandfather. The occasion serves to reopen several old wounds, culminating with Magnum angrily accusing his stepfather Frank (David Huddleston), whom he has always resented, of stealing a precious family heirloom--namely, a letter from Abraham Lincoln. Musical comedy star Gwen Verdon makes her first series appearance as Magnum's mother Katherine; and watch for Tom Selleck's real father Robert Selleck Sr. as "Grandpa Everett" in a brief home-movie sequence.