In November 1925 Britain's biggest and most advanced submarine sank without trace, taking 69 men to their deaths. The Admiralty claimed it was a collision, others weren't so sure. An ex-Navy diver sets out to solve the mystery.
(R) (S) (W)
Discover 11,128,835 listings and 280,259 playable programmes from the BBC
In November 1925 Britain's biggest and most advanced submarine sank without trace, taking 69 men to their deaths. The Admiralty claimed it was a collision, others weren't so sure. An ex-Navy diver sets out to solve the mystery.
(R) (S) (W)