The Proof Is Out There S02E24 - UFO Window Seat and Lost Underwater City

Episode Overview

A passenger jet offers a jaw-dropping view of a UFO through its window. Meanwhile, an unusual find beneath the waves is believed to be a forgotten Japanese city. Could giant sloths be the reason behind a network of tunnels found in Brazil? Tony and his team delve into some of the most bizarre photos and videos from around the globe.

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