Josh and explorer Steve Duncan travel to Tallinn in Estonia where they explore Patarei Prison; in Vietnam, Cody and his friend, Sherman Mak, travels to Pan Thiet in search of abandoned amusement park Soui Cat.

Urban explorers Josh and Cody visit Germany and Morocco in search of astonishing abandoned locations including Wünsdorf, the forbidden city near Berlin, and an abandoned film set in the Sahara desert used for "Game of Thrones."

In Georgia, Cody and roof-topper Harry Gallagher ride in a cable car known as Stalin's coffin; in France, Josh searches for abandoned chateaus with globetrotter Lexie Limitless.

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 in abandoned Six Flags New Orleans; Josh is in Cyprus where the U.N. peacekeeping force allows him to explore the abandoned Nicosia International Airport and the UN buffer zone.

Together with rooftopper Elaina Hammeken, Josh explores a radio telescope from the Soviet era in Armenia; Cody takes a trip through the Greek mining industry of Ptolemaida with traveling companion Elvis Brauer.