The Adventurers are each assigned the name of the individual target of the High Command that they are to assassinate: Napoleon Boot, the suspicious and cynical Borrible; Chalotte, the tough and brave girl Borrible; Vulgarian (Vulge), frail-looking, but "tough as nails"; Bingo, always cheerful; Sydney, another female and an animal-lover; Stonks, strong and kind-hearted; Torreycanyon, light-hearted with a knack for mechanics; Orococco, the jovial, black Borrible. Napoleon, Chalotte, Sydney, Vulge, Bingo, Stonks, Torreycanyon, and Orococco set out to squash the Rumble threat – but other Borribles have secret agendas and personal vendettas of their own which create an even greater threat than the Rumbles ever were. The supposedly straightforward adventure dominoes into a desperate fight for the very existence of Borrible life.