S5 E2 ∙ The Valkyrie Assassin ∙
The underground base with the power to destroy a nation, the site linked with an attempt to kill a dictator, and an ancient world discovered in the American wilderness.
All episodes for series 5 of Abandoned Engineering
S5 E1 · Disaster in the Desert
The desert town that faced a disaster of biblical proportions.
S5 E2 · The Valkyrie Assassin
The underground base with the power to destroy a nation.
S5 E3 · Escape from Devil's Island
Claustrophobic prison cells that contain a story worthy of international acclaim.
S5 E4 · Top Secret Nuclear Arsenal
A secretive underground base that concealed the power to destroy nations.
S5 E5 · A Nation Torn Apart
A marooned ironclad structure off the coast of England.
S5 E6 · Ghosts of the Swamp
Forgotten relics from the defence of America's homeland.
S5 E7 · Death Behind Bars
An American prison for the violent and deranged with links to an infamous cult leader.
S5 E8 · Behind Enemy Lines
An Albanian village home to Allied secret agents.
