It was a moment that George Langley would never forget. At six minutes to 10 on 2 September 1915, he was hurled into the air and left fighting for his life when the troopship, HMT Southland, was hit by a German torpedo.
The Southland had left Alexandria three days earlier and was carrying troops to Gallipoli when it was attacked by a German U-boat in the Aegean Sea near Lemnos.
Langley was thrown into the air by the force of the explosion and fell through a hatch into the bilge as it filled with rushing water.
His story of survival is told at the Australian War Memorial as part of Against all odds, a special temporary exhibition featuring personal stories of escape and endurance from the First World War to Afghanistan.