Strange discoveries are emerging from around the world. A golden orb on the Alaskan seafloor, claw-marked caves in Brazil, ancient burials, and mysterious manuscripts are raising new questions about the past. Tony Harris and his team investigate.

Unexplained lights continue to baffle witnesses around the world. From North Carolina's Brown Mountain Lights to Texas' legendary Marfa Lights, Tony Harris and his team investigate the evidence and deliver their verdict.