In the perilous and lawless city of Tlachinolli, famously known as "the frontier of frontiers" and a haven for all manner of vice and criminals, two professional bounty hunters, the pragmatic and skilled driver Remy Blue and her formidable, impulsive partner Naomi Wolf, embark on a high-stakes mission. Their objective: to locate and rescue allied contacts from the encroaching Grullas mafia, a powerful external force vying for control alongside established local organizations like Los del Barrio, Los Cuates, and Los Pacífico. They must pursue this mission within a world defined by shifting loyalties, constant threats, and a pervasive lack of conventional rules.