They've kept the Santa Fe Railroad off track with three holdups. They've sent the marshal of Flagstaff, Arizona, to a higher justice with a well-placed bullet. They've pulled the wool over the eyes of the Navajo by rustling their sheep. They're the Grand Canyon Gang, and they're lower than a rattlesnake sunbathing at the bottom of their namesake.
It's Deputy Marshal Custis Long's duty to bring these cutthroats to justice. But after encountering a jewel named Emerald Alexander, he's been cursed with a string of bad luck that includes being robbed, conned, and wrongly imprisoned. Now that his temper has been riled, Longarm is going to give this gang a tour of the Canyon they'll never forget