When the BP oil spill devastates the Louisiana Gulf Coast, the citizens of the bayou town of Jeanette scramble to replace their lost livelihoods. Among them is one-armed, pill-popping shrimper Gus Lindquist, who has nothing left but the dying glimmer of a boyhood dream: finding the lost treasure of pirate Jean Lafitte. With his metal detector and Pez dispenser full of Oxycontin, Lindquist steers his rickety shrimp boat into the savage Louisiana swamps.

Along his journey, Gus meets a motley crew of characters: Wes Trench, a young Cajun man estranged from his father since his mother died in Katrina; Reginald and Victor Toup, sociopathic twin brothers and drug lords; Cosgrove and Hanson, petty criminals searching for a secret that could make them rich, or kill them; and Brady Grimes, a BP middleman out to make his career by swindling the townsfolk of Jeanette, among them his own mother.

Funny, dark, and compelling, The Marauders throws these characters on a rollicking collision course that all of them might not survive.