Riding Shotgun takes place in the Sand Subsector . The characters are hired to do a simple task: drive a tractor-trailer unit from one city to the next. The reason is that the business owner cannot trust his employees because there has been sabotage in the past. They need people they can trust and have no on-world connections.
This adventure plays out over four locations. The starting city and starport, the journey across the desert, the destination plantation and factory, and a desert cave system.
Mostly theater of the mind, a GM map of the cave system is provided.
As with all Cepheus Engine adventures, Riding Shotgun is easily converted for use in any version of Traveller.