When the wreck of a lost Royal Navy autonomous underwater vehicle, the Voidrunner, washes up on a Florida shore the PCs are sent on a dangerous mission to investigate. Their investigation will pit them against the might of the El Camino Oculto crime syndicate and its mysterious and ruthless leader, El Ombra. The mission will take the PC s around the world, from the military wharves of Plymouth to the unexplored jungles of the Darien Gap of Panama. All while dodging the deadly traps and ambushes set by dangerous El Camino Oculto henchmen.