Indy's off to Vienna with two unusual spies, hoping to obtain a secret letter that will help them bring an end to the war that is destroying both France and Austria. The new spies may be inept, but they have an advantage Indy can't hope to match... The Empress of Austria is their sister. They're a royal pain, and though he may want to strangle them, Indy has to help keep them alive.
— Description from Comic Vine community (comicvine.gamespot.com).
