Disguised as a psychiatrist. X20 further discredits Phones' claim that he really did hear the sounding that drew Stingray away from their escort patrol. Fisher who discovers X20's remote sounding device that clears Phones. The Stingray Crew rescue and return to Marineville a man appearing to be in a comatose state. He is actually in a hypnotic trance and under orders to put the rest of Marineville in a similar trance.
Troy manages to awaken the populace before an attack can be launched.
Investigating the disappearance of a robot probe, Stingray is drawn to the bottom of a volcano where two survivors of a destroyed city attempt to steal Stingray to escape the erupting volcano. When Marina locks the hatch they are forced to return for Troy and Phones who have been left to die. Since there are only two sets of breathing gear, Troy and Phones must rely on their WASP training to make the swim to Stingray. The Stingray crew aid Professor Graham in his search for the missing temple of ajmanon which was submerged when a dam was built in Africa. They encounter incredible dangers until they meet with El Hamra, an old colleague of Graham's who tells them that the temple was moved stone by stone to dry land.