In the lead up to its Frontier Days, Rex is summoned to Nugget City, permanently transformed into its former heyday of a wild west town for tourism purposes, to meet with the town's leading businessman, Marcus Henning. Despite not liking Henning upon their meeting and the way he tries to exert his power in town, Rex accepts the case both due to its lucrative nature and the seeming ease of the task: to retrieve former sharpshooter Notch McConnell, who retired with twelve notches on his gun, from his seniors residence home to be part of the featured mock quick-draw shootout with Henning at Frontier Days. Finding out that Notch believes he is smarter than everyone else and thus does whatever he wants regardless of what people tell him is only one area that makes the case more difficult for Rex. Arguably the more complex issue is that people seem to be interested in obtaining Notch's stock in the Bunbury Silver Mine, stock he won in a poker game and that he states he knows is worthless in the mine no longer having any silver to extract. Those who show some interest in it in one form or another include Henning, Henning's overly amorous secretary Samantha Hoyt, that amorous nature despite being engaged to Henning's assistant Jim Vance, Henning's "rival" Wayne Gentry, and local reporter Carl Quigley. Regardless of Rex needing to figure out why so many people are interested in worthless stock, Notch's know-it-all attitude may get him killed in the matter, that is unless he truly is smarter than everyone else, especially the person masterminding the stock acquisition, he/she willing to kill to get to the end goal.
—Huggo