Josh and urban explorer Steve Duncan travel to Tallinn in Estonia where they explore Patarei Prison. Meanwhile Cody and Sherman Mak travel to Pan Thiet Vietnam in search of the abandoned amusement park Soui Cat.

Cody and rooftopper Harry Gallagher take a cable car trip in Georgia known as "Stalin’s coffin" while Josh and globetrotter Lexie Limitless search in France for abandoned chateaus.

Josh and Cody dive into the underworld; Josh explores the abandoned German mining industry and has an encounter with a police squad; in England, Cody explores an old Soviet submarine in the River Medway.

Cody encounters wild animals and thrilling attractions at the abandoned Six Flags New Orleans. Meanwhile thanks to the U.N. peace-keeping force Josh is in Cyprus exploring the abandoned Nicosia International Airport and the U.N. buffer zone.