A secret NATO mini-battleship sank in the North Sea. Before British Intelligence can recover the vessel, an Eastern fishing trawler has reached the spot. Sharpe believed the trawler to be a ruse, which was soon confirmed by Probe when he spots three armed guards. Leaping from the water, dolphin-style, Probe found that the trawler was actually a disguised salvage vessel, with the inside cut away. Surmising that it intends to haul up the battleship and was responsible for the explosion which sank it in the first place, Probe set out to blow up the trawler. Caught by an opponent wearing a deep sea diving suit, Probe managed to electrocute him and continue with his mission.
- power assisted deep sea diving suit