Researcher Marc Seifer finds the smoking gun evidence proving the U.S. military wanted Tesla's secret files. Jason Stapleton and Travis Taylor investigate a link between Tesla's last patent, in Season 1, Episode 4, "Secret Weapons."

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Why were trunks belonging to genius inventor Nikola Tesla confiscated in 1943? Did they contain the plans for nearly free worldwide electricity, massive death rays, and other inventions out of the future? A new investigation driven by declassified CIA documents suggests a secret history of bitter rivalries, government conspiracies, Cold War and WW2 spycraft, extra-terrestrial communication, and amazing achievements of a truly gifted man – Nikola Tesla.

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