In the midst of the Balkan wars, a squad of Navy SEALs attempts to unravel a long-forgotten mystery after discovering an enormous treasure trove hidden at the bottom of a lake in Serbia.
The hot-headed young D'Artagnan along with three former legendary but now down on their luck Musketeers must unite and defeat a beautiful double agent and her villainous employer from seizing the French throne and engulfing Europe in war.