Commander Braithwaite has received intelligence that there may be a threat on the life of the daughter of a friend of his. At the special request of the Commander, Charlie and fellow agent Barbara Witherspoon are sent to Austria to pick up Penelope Fortescue-Brown from her finishing academy and deliver her safely to her home in Scotland.Charlie and Witherspoon soon discover that the academy is a front for a gang of criminals who hold girls for ransom to gain military information from their parents to sell to the highest bidder. Against their will, the criminal gang hold the two agents and Penelope prisoner at the academy. The criminal leader tells Charlie and Witherspoon that their bodies will be found floating in the nearby river.Can Charlie and Witherspoon escape and rescue Penelope before the criminals carry out their threats to murder them all?