Hunting Hitler (2015)

Following declassified FBI files that link Hitler’s U-boat unloading site to a massive German owned estate in the Southern Andes, the team uncovers the town of Bariloche and the Inalco House, where Hitler could have stayed. After trying to gain access to the property with aerial drones and a secret swim through the water, the team is able to take photos of the mysterious interior as well as finds a vent that could lead to a bunker.