IndieDVD is about to release the most expensive film in the companies history, Devil’s Keep, but the extras are just as interesting.

“The Devil’s Keep” is the story of two teenagers running for their lives while trying to find hidden Nazi treasure that had been buried by the Nazis as they fled Germany during the deterioration of the Nazi Empire. The two are pursued by Nazis in the hopes that the teens will lead them to the hidden gold as well as CIA agents who are trying to keep the relationship between the U.S. government and ex-Nazis a secret.

The new DVD will feature an audio commentary from the director and a documentary on Nazi conspiracies, but most interesting is an interactive map based on the actual locations of the lost gold. So this disc could easily pay for itself if you find the treasure.

With a suggested retail price of $19.95, the DVD will be available very soon on September 24th.