In the warm waters of the Indian Ocean, Shipwreck Detective Jeremy Green is in pursuit of the wrecks of two ships lost at a critical time of World War II - British aircraft carrier HMS Hermes, and her escort, the Australian destroyer HMAS Vampire. To commemorate the anniversary of the sinking, the expedition has been timed to coincide with the arrival of veterans from both the Hermes and Vampire. The hope is the team can find both ships before the veterans arrive.