The new England-France Channel Bridge is attacked by a group of whales under the influence of synthesised whale sounds produced by Doc Terror's new recruit Madame Arpeggio. After preventing the whales from doing any more damage to the bridge, Max consults the whale Whistler, who is equipped with an electronic voice box. He discovers that a giant white whale is responsible for influencing the other whales into attacking the bridge. The white whale is in fact Doc Terror's giant sea-faring android. Max is captured by Terror and learns that he intends to use a whale army to attack Venice, currently hosting a symposium of the Council of World Scientists.

Science Lesson: Whales by Max.

Doc Terror steals the new weather master. His associate Professor Storm created a weather helmet that enabled him to create a living tornado. The helmet combined with the weather master could unleash countless disasters.

Hacker is spotted near Manhattan, and the Centurions are sent to investigate. He takes a woman, Cassandra Cross, hostage, but she manages to subdue him with her magical powers. After reviewing Hacker's memory, Doc Terror plans to have her power for himself. Meanwhile, Ace has become smitten with Cassandra, and while enjoying a flight with her, they are both kidnapped by Hacker. In Terror's base under Manhattan, Ace discovers that Cassandra comes from a family of witches. Terror wants Cassandra's powers to sink New York, but before he forces her to help him, she frees Ace as the other Centurions arrive.

Science Lesson: Earthquakes by Crystal.

Sealab's field vessel Sealiner 2 is buried undersea when one of its engines explodes. Sealab's current commander, Dr. Regulas, refuses the head of Sealab security Mei Lee's request for the Centurions help and sends divers out to rescue the ship instead. Mei Lee contacts Jake and tells him that there have been three prior accidents in the last month and asks the Centurions to investigate unofficially. Meanwhile, Doc Terror has Hacker plant bombs on a fault line in Mariana Trench while Sealab is busy. Max uses his new Sea Bat weapon system to assist in the rescue efforts, but soon comes under attack by Hacker. They manage to rescue the pilots, but are chastised by Dr. Regulas. Suspecting sabotage, the Centurions must figure out who the real traitor is before Terror's vibro-bombs can crack the world.

Science Lesson: Minerals from the sea by Max.

In Egypt an archaeological dig at the Pyramid of the Lost Pharaoh, headed by Professor Egon Sloan, is attacked by super-powerful jackals. The professor contacts Skyvault and requests the help of the Centurions to guard the pyramid from tomb robbers. Later that night, Jake overhears the professor using an ancient incantation to awaken the Lost Pharaoh's mummified bodyguards and is knocked out by Hacker. Shadow escapes and alerts the other Centurions, who find out that the professor is working with Doc Terror and intends to use the ancient mummies to help him take over Cairo. As Ace and Max stand up against Terror and his super-powerful mummies, Jake alone is left to defeat them and save the city.

Science Lesson: Pyramids by Max.

Max takes Ace and Jake to the Lake Eyrie reclamation plant, which he helped to design. Doc Terror decides to attack the plant to cause the Northeast farmlands to wither away. The Centurions successfully defend the plant from Terror and return to Skyvault. There, Jake is hit by an experimental sonic beam and experiences a vision of Doc Terror in charge of Skyvault on January 11th, the next day. Jake snaps back to the present and attempts to explain his vision to no avail, with the no one else believing him. Jake goes AWOL and researches a symbol he saw on Amber's uniform in the future, tracing it to Star-Crossed Industries. Discovering that the company is a front for Terror and that they have disguised a shuttle as a hospital ship, Jake must attempt to prevent the future he saw from occurring.

Science Lesson: Relativity by Ace.

While conducting a training exercise, the Centurions come under attack from Doc Terror's forces. Ace is rescued by his old acquaintance, Cassandra Cross, the witch. The Centurions decide to attempt to duplicate her powerful abilities by studying her on board Skyvault. But once connected to Skyvault's computers, she turns off the defense systems and introduces herself as Lilith Cross, Cassandra's twin sister. With no defense systems operative, Doc Terror beams on board Skyvault. Ace manages to escape using the magical white rose given to him by Cassandra, and beams to Earth. He finds Cassandra trapped by Lilith's magic, and frees her. Together, they go back to Skyvault, and attempt to free the other Centurions.

Science Lesson: Herbal medicine by Crystal.

A group of Native Americans comes under attack by a giant totem claiming to be a ghost warrior, who tells them to fight against those who have built upon their land. The tribal leaders call in John Thunder, who brings along his fellow Centurions Ace and Jake. While John confers with his people, Ace and Jake are attacked by Hacker. Meanwhile, the giant ghost warrior appears to John and his tribe and brainwashes them into attacking a geological research lab. John tracks down the ghost warrior and finds out that it is really a giant Traumitizer controlled by Doc Terror. Terror traps John, and as his brainwashed victims keep Ace and Jake occupied, Terror attacks the real target: a nearby space port. John must free himself and his people, and assist his Centurion friends.

Science Lesson: The Apaches by John.

Ace disarms some plane hijackers working for Doc Terror, who is angered by their surrender. Despairing of the failing of humans, Terror blames Amber for selecting the hijackers, and decides to exterminate all of mankind and replace them with robots. Rex Charger is specially recalled from a skiing trip to respond to a distress signal. He discovers that it is Amber, being chased by Hacker and some Strafers. She tells the Centurions that her father intends to destroy all of humanity this time, and that she wants them to stop his mad plan. With her help, the Centurions track him down to a Florida power plant, and discover that Terror intends to use a weather control satellite to create the biggest storm the world has ever seen. With the storm's strength increasing exponentially, it is left to the Centurions to figure out a way of neutralizing it.

Science Lesson: Lightning by Jake.