 Along for the ride aboard Tesla's airship are other historical figures, reporters Lillie West and George Ade, as well as Kolman Czito, Tesla's assistant.On the journey to the Red Planet, the adventurers are treated to a hidden history of conflict between the Earth and Mars, as well as Tesla's stunning knowledge of geophysics of the two planets.Upon arrival on Mars, the team pursues the crystal deep into the underground civilization ruled by Kel, the mad emperor determined to subjugate Earth with the power of the crystal.