***SPOILERS*** While taking a hunting and fishing vacation in the mountains private investigator Mike Barnett gets himself involved in a murder kidnap as well as jewel robbery "adventure" with him ending up bulldozing down the shack that the main culprit is shooting from at him. At first it seems like a case of mistaken identity when Frank rents a room at this place in Deer Falls for the evenings when he ran out of gas and was stranded in the middle of nowhere.
It turns out that the owners of the place Ma and her trigger happy son Curt had something going when this guy Leon Turner showed up at Frank's hotel room demanding why he's there since he rented it together with his wife Ethel who has since gone missing! It doesn't take long to realize that both Ma & Curt are up to no good but Frank has another surprise coming in to what the very concerned about his wife Leon as well as Ethel, who's believed to be dead or kidnapped, are really all about!
***SPOILERS*** It's Leon who gets the upper hand on both Frank as well as Ma and her son Curt, whom he murdered, in revealing that he's not an innocent tourist but a crook who together with Ethel committed the Wilkerson jewelry heist is Boston and is now laying low until the heat's off in out of the way Deer Falls. As for Ma & Curt they tried to rob Leon with the greedy and two timing Ethel joining them only to have Leon turn the tables on them instead! It's when Ethel whom Frank thought that he rescued turned on her crook of a husband Leon by trying to double-cross him and take off-with Ma & Curt- with the stolen jewels that the by now finally figuring things out Frank Barnett went into action. Not only disarming Ethel, who had him covered,but putting the pinch on her husband Leon who's attempted escape ended up crashing down on him!