(There are Spoilers) Far fetched Perry Mason crime drama has Perry, Raymond Burr, get off the bench as an appeals court judge to take up the case of Air Force Colonel Kevin Parks, Larry Wilcox, who's conviction Perry Mason upheld on appeal! Convicted of the murder of Mary Beth Sawyer Col. Parks is given a second chance to stand trial and prove his innocence when this man Lester McCarren, Joel Colodner, stepped forward and provided Parks with an air-tight alibi; that he was with him on the Old Woods Road, some 50 miles away from the murder scene, the night that Mary Beth was murdered.
Just before testifying McCarren gets an envelop slipped to him with his wife's golden heart pendant and a note telling McCarren that she'll be killed if he testifies in Parks favor. That's all it takes for the man to freeze up on the witness stand and suddenly lose his memory throwing away the last chance for Parks to be a free man.
We see this obviously disguised person, dressed as a mountain man, who slipped the threatening note to McCarren. Later at a restaurant as McCarren tells Perry Mason that he can't tell the truth about what he knows about Parks being with him the night that Mary Beth was murdered this same mountain man suddenly shows up and has McCarren paged, by saying that it's his wife calling. It's then that he blows him away when he goes to the back to talk to her on the phone.
Really making up for lost time the grizzled mountain man then goes back to the courthouse where Parks is in custody thus proving that he didn't kill McCarren and throws a stink bomb into a crowded elevator with Parks in it knocking everyone out. Then, wearing a gas-mask, the mountain man kidnaps Parks and drives him down to this deserted airstrip placing the murder weapon into the unconscious Parks hand! All this to make it look like he's the one who murdered McCarren.
The movie then goes into a number of different directions that involves the US Air Force with a pill popping fighter pilot Lt. Wilkes ,Gary Hrshberge,who's being blackmailed in that he suffers from dizzy spells that would disqualify him from flying. There's Mary Beth's former boyfriend Daryl Herley, James McItire, who felt that he and Mary Beth were made for each other but it was that dirty rotten swine Col. Parks, together with his good looks and chest full of medals, who blinded the naive and very impressionable Mary Beth from seeing the fact. There's also suspected in Mary Beth's murder a real-estate tycoon Jason Slone (Charles Siebart), whom she worked for as as a private secretary. There's also Slone's somewhat strange, who has a deep family secret that she's been hiding for years, wife Athera ,Patty Duke. Not to overlook in the mix the mysterious mountain man himself who tries to murder Perry's private investigator Paul Drake Jr, William Katt, almost a half dozen times. The mountain man ends up having himself thrown from the second floor of a cafeteria breaking his neck and exposing just who he really is; and he's not any kind of mountain man or anyone else who's in love with the great outdoors.