ChildhoodfriendsTommyandTuppencemeetinLondonafterhavingservedinWorldWarI.Recently"demobed",shortofmoney,andwithnojobprospects,theydecidetobecomeadventurersforhire.Soon,theyareemployedbytheBritishGovernmenttolocateasecrettreatysignedbeforethewar.
