Silver & Smith and the Doppelganger's Gate

Silver, a mysterious mercenary with a dark past, and Henrietta "Hank the Hawk" Smith, a brave and idealistic archeologist, find themselves in a race against time to locate an artifact that could reveal a secret buried by history.
Two powerful corporations are also in the hunt, one to manipulate genetics and the other to uncover lost technology. Silver and Smith must brave dangerous continents and battle against the corporations and shadowy forces to secure the relic before the truth is lost forever.
If you enjoyed Indiana Jones and the Raiders of the Lost Ark, you'll love Silver and Smith.