Poster for Abandoned Engineering

U&Yesterday 2017 - 15 seasons 145 eps TV-PG Returning series

Abandoned Engineering

2017 - 15 seasons 145 eps TV-PG

7.3

Season 15

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Season 1

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Season 15

45 min

S15 · E1 · Nov 26, 2025

Japan's Poison Island Episode 1

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.

45 min

S15 · E2 · Dec 3, 2025

Hitler's Fortress of Fury Episode 2

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.

45 min

S15 · E3 · Dec 10, 2025

The Nazi's Last Stand Episode 3

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.

45 min

S15 · E4 · Dec 17, 2025

Suicide Island Episode 4

Exploring a Dover stronghold transformed during an unprecedented crisis, and a top-secret site in Japan used for wartime missions of no return.

45 min

S15 · E5 · Dec 24, 2025

London's Burning Episode 5

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.

45 min

S15 · E6 · Dec 31, 2025

Cold War Cover Up Episode 6

Exploring a top-secret military base in Michigan linked to an unexplained disappearance, and a California transportation hub that inspired lasting change.

45 min

S15 · E7 · Jan 7, 2026

Escape from Dunkirk Episode 7

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.

45 min

S15 · E8 · Jan 14, 2026

The Invisible Enemy Episode 8

Exploring a top-secret facility in Scotland besieged by militant protesters, and a small Greek island caught in a chilling web of controversy.

45 min

S15 · E9 · Jan 21, 2026

Agent Zigzag Episode 9

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.

45 min

S15 · E10 · Jan 28, 2026

Peru's Massacre Island Episode 10

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.

45 min

S15 · E11 · Feb 4, 2026

Churchill's Folly Episode 11

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.

45 min

S15 · E12 · Feb 11, 2026

Churchill's Shadow War Episode 12

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.

12 episodes in Season 15

Some details come from TheTVDB.

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