The game takes place within the fictional universe in which prior Traveller releases are also set. The most significant power in this universe is the human-dominated Imperium which predominates across thousands of inhabited solar systems. Bordering the regions controlled by the Imperium are other interstellar powers including the Zhodani Consulate. The Imperium and the Zhodani have a long history of tense relations and, as the game begins, rumors of another frontier war are circulating. Against this backdrop, a security agent working for Sharushid, a large corporation active throughout the Imperium, discovers that a company sub-sector chief named Konrad Kiefer is secretly aiding the Zhodani by smuggling arms across the border into the hands of dissidents in preparation for an uprising within the Imperium to be coordinated with a Zhodani attack. This security agent encounters five experienced adventurers in a bar on the planet Efate and entrusts them with evidence of Kiefer's treachery. These adventurers are tasked with delivering the evidence to a second Sharushid agent located in another solar system and ultimately with stopping Kiefer and his conspiracy against the Imperium. The player assumes control over the party just after the security agent entrusts it with the evidence against Kiefer.