American Bombers in Suffolk: In WW2, Suffolk was home to 32 airfields that served as stations for US bombers. Suggs and Stephen hunt for relics of the visiting aircraft. (S1, ep 5)
82nd Airborne and German POWs: Suggs and Stephen go in search of relics from the United States' elite 82nd airborne infantry division. (S1, ep 4)
Tank in a Vineyard: Suggs and Stephen continue their hunt for buried WWII treasure, and discover a tank buried in a vineyard. (S1, ep 3)
Douglas Bader and the Duxford Fliers: Suggs and WWII expert Stephen hunt for souvenirs left by flying ace Douglas Bader and the legendary Duxford Fliers. (S1, ep 2)
German Bomber in Liverpool: Suggs and WWII militaria expert Stephen Taylor unearth artefacts from former military sites - starting with a German bomber found in Liverpool. (S1, ep 1)
La Mesa, Mexico: A look behind the bars of La Mesa prison, in Mexico, where in 2008 two riots left 19 prisoners dead and 12 injured. (S2, ep 7)
Armavir Prison, Armenia: Hailed as Armenia's first European standard prison when opened in 2014, Armavir prison has since been accused of violating inmates' human rights. (S2, ep 6)
El Hongo, Tecate, Mexico: Go behind the bars of one of Mexico's toughest jails, El Hongo, reputedly controlled by a notorious drug cartel. (S2, ep 5)
South Cotabato Jail, Philippines: An inside look into the notoriously brutal South Cotabato Jail in the Philippines. (S2, ep 4)
Colony 100, Khariv, Ukraine: An unflinching look inside the world's toughest prisons, beginning with Colony 100 in Kharkiv, Ukraine. (S2, ep 3)