 During his dive, Durritt's lifeline is jerked violently, and Cargunka swims into the wrecked ship, without a diving suit, to aid the man.Cargunka rescues him, but there seems to be no explanation as to how the became twisted around an interior door-handle, or for the blow he received to the back of the neck, which knocked him unconscious.Durritt dives into the wreck again, and the same thing happens