Episode 1: Japan's Poison Island
2025-11-2644 min
Exploring a complex in New Jersey infiltrated by a notorious gang, a tranquil Japanese island with a poisonous legacy, and a top-secret bunker in Lithuania raided in the name of freedom.
Season guide
Abandoned Engineering Season 15 — Episodes and Where to Watch
12 episodes · first aired 2025-11-26
TMDB does not provide a season overview.
Episode guide
Episode 2: Hitler's Fortress of Fury
2025-12-0344 min
Exploring a serene institution in Wisconsin seized out of righteous anger, a Spanish settlement stained in innocent blood, and a subterranean lair in France with a disturbing objective.
Episode 3: The Nazi's Last Stand
2025-12-1044 min
Exploring Nazi towers in Berlin that were defended to the bitter end by child soldiers, a Chicago institution that was the largest of its kind, and an odd vision in the Malaysian jungle.
Episode 4: Suicide Island
2025-12-1744 min
Exploring a Dover stronghold transformed during an unprecedented crisis, and a top-secret site in Japan used for wartime missions of no return.
Episode 5: London's Burning
2025-12-2444 min
Exploring a towering structure in London on the banks of the river Thames, witness to the city's darkest days, and a Wisconsin farmstead that brewed up a storm.
Episode 6: Cold War Cover Up
2025-12-3144 min
Exploring a top-secret military base in Michigan linked to an unexplained disappearance, and a California transportation hub that inspired lasting change.
Episode 7: Escape from Dunkirk
2026-01-0744 min
Exploring the nerve centre of a heroic rescue mission in England, a dilapidated mansion in Virginia raided during the Civil War, and a facility in Detroit where a champion made his name.
Episode 8: The Invisible Enemy
2026-01-1444 min
Exploring a top-secret facility in Scotland besieged by militant protesters, and a small Greek island caught in a chilling web of controversy.
Episode 9: Agent Zigzag
2026-01-2144 min
Exploring a Philadelphia venue that set the stage for era-defining artists, a French compound where a staggering deception was launched, and a the scene of a baffling crime in Malaysia.
Episode 10: Peru's Massacre Island
2026-01-2844 min
Exploring a remote Peruvian island besieged by a violent rebellion, a refuge in Nevada that offered hope to its occupants, and a French worker's paradise seized by an invading force.
Episode 11: Churchill's Folly
2026-02-0444 min
Exploring a secret New Jersey facility infiltrated by a Soviet spy ring, an island stronghold besieged by the Nazis, and a palatial compound in Peru frequented by the country's elite.
Episode 12: Churchill's Shadow War
2026-02-1144 min
Exploring a secret subterranean network in London that inspired James Bond author Ian Fleming, and an Italian country retreat that was designed to brainwash a generation of children.
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