Discovery and Science Channel are teaming up with urban explorer Justin Fornal on “Uncharted,” TheWrap has learned exclusively. The new series will use modern technology and historical maps to investigate historical mysteries and legends.

Premiering this fall, the series follows Fornal as he cross-references information from old maps to seek long-forgotten information on legends such as a treasure ship buried in the middle of a California desert, and whether the Knights Templar secretly brought their treasure to the New World a century before Columbus arrived.

“With the use of old-school maps and the latest technology, Justin may have found just the right combination of tools to find the answers to mysteries that others before them have come up short in solving,” Science Channel general manager Marc Etkind told TheWrap.

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Fornal is the man behind the Baron Ambrosia character,...