Fin Finnegan, a San Diego police detective and wannabe actor heading straight for a midlife meltdown, is assigned a routine truck theft that turns into a toxic chemical spill, setting off a bizarre chain reaction of death and murder on both sides of the Mexican border. Fin is forced to team up with Nell Salter, a sexy female investigator, as well as an equally fetching U.S. Navy investigator who wants to learn all that Fin can teach her—and that’s saying a lot.