Spoiler warning! Do not read this file until you have completed reviewing the Ark Angel mission file.

Alex is taken scuba-diving to see the wreck of the Mary Belle, a ship sunk in the Second World War. But when Alex is inside the wreck, his guide Kolo traps him inside and leaves Alex there to die. Alex tries to get out, but is running out of air quickly. Fortunately he is rescued by Tamara Knight who has followed him out there. She has brought Alex's inhaler gadget, so that he can blow up the chain holding the door shut.