Abandoned: Expedition Shipwreck season 1 episode 4
Episode title: Assassins of the Deep
The wreckages of three German U-boats—including UC-66, the first to be sunk by a plane in WW1, and U480, the world’s first stealth sub—are eroding at the bottom of the sea along with the stories behind their disastrous fate. A team of maritime archaeologists race to locate the submarines and solve the mystery behind their deadly demise.
