When one of Audric's experiments goes wrong, Saw Boss and the Monster Minds are created and set out to conquer the galaxy. Audric creates a magic root which can fight the Monster Minds but it is split into two, one half is taken by Audric, the other by his son, Jayce. The Lightning League seek the help of Herc Stormsailor to escape the planet and locate Audric.

Jayce travels to Xiang in search of a secret message left by his father in a vase. Saw Boss realises what Jayce is looking for and orders all vases destroyed and Jayce must locate the vase before the message is lost forever.

The Lightning League go in search of the Helmet of Valroth, which could be a powerful weapon against the Monster Minds but the power of the helmet starts to change Jayce.

The Lightning League discover the Monster Minds about to take over a planet where all plantlife grows to many times its original size. Fearing an army of gigantic Monster Mind drones, they go in search for allies to help the fight, but find the native order of knights very hostile to all foreigners.

The Lightning League investigate an abandoned ship which is emitting a signal from Audric.

While stopping to repair the Pride, Gillian and Flora are captured by Monster Minds.

The Lightning League is trapped on a icy planet about to be destroyed by a gigantic volcano.

Jayce's search for Audric leads him Taber's Belt the home of the Pirate's Guild led by Morgana, an old friend of Herc. When the Pirates, who are working for the Monster Minds, capture the Pride, the League must try to escape and break Morgana free from Saw Boss' influence.

Having lost Audric's trail, Gillian takes Jayce to the place where all time meets in order to show him the future and track down Audric. Jayce sees a future where the Monster Minds stand unopposed and only by confronting Saw Boss can he change the future and save his father and the galaxy.

The search for Audric leads to a planet the Monster Minds are draining of water. Jayce agrees to help the inhabitants stop the Monster Minds.

The Lightning League travel to Auriga, a planet ruled by the tyrant Marduk and famed for its casinos. Jayce helps the people fight Marduk and the Monster Minds.

After launching setting up a Monster Mind infested galaxy to collapse into a black hole, the League discovers human lifesigns on an asteroid. Jayce is determined to save him, but has less than 3 hours before it's too late.

The guardians of the Great Library of Hebron contact Jayce for assistance when they come under attack from Monster Minds. The Lightning League must prevent Saw Boss from stealing the Purple Tome, a book which contains the spells used by the ancient Ashvar civilisation.

The Monster Minds set a trap for Jayce, offering him Audric in exchange for the root. Audric proves to be just an illusion generated by King Phineas after Saw Boss threatened to destroy his planet. The Lightning League and King Phineas must work together to fight the Monster Minds and save his people.

Saw Boss lures the Lightning League to Kyros, a planet which is being turned into crystal after the power of the Bloodstone was drained by the Monster Minds. Jayce must restore power to the Bloodstone and use it to save the planet before it is too late.

The Monster Minds take two children from the planet Adelbaren hostage and force their older sister to lure the Lightning League into a trap.

Saw Boss agrees to allow Orion, a hunter who hunts only the most worthy prey, to hunt for Jayce. Orion captures Jayce and takes him to the planet Mortaros to carry out the hunt. Flora undergoes a dangerous procedure to heighten her sensitivity to the root and help the Lightning League find Jayce.

The planet Baz sprays all their plants with pesticide to keep the Monster Minds from invading their planet, but the Monster Minds send vines to cut them off from outside shipments of food. Zena, the princess of the planet, contacts Jayce for help, but when the Lightning League arrives on Baz the pesticides begin to kill Flora, and the Monster Minds prevent them from taking her to safety.

While investigating convoys of slaves and equipment heading for the Black Nebula, the Lightning League hear rumours that the Monster Minds are building Doom Flower, a space station that will carry them to another universe with more suns and nutrients, allowing them to grow powerful and return unstoppable. Furthermore, Audric has been captured and is working as a slave on the project. Jayce sets out to rescue his father and stop the Monster Minds before they can activate Doom Flower.

The Lightning League install a shield around the planet Eldor to protect its inhabitants from the Monster Minds. As they leave the planet Saw Boss lures them into a trap, a portal to a negative universe. Although they escape the trap another version of the Pride of the Skies containing an evil version of the Lightning League comes through the portal and Saw Boss enlists their help in destroying the real Lightning Leaue and the planet Eldor.

Saw Boss learns the Vine Stopper, a weapon created by Audric, could be reversed to speed up the vines' growth and sends troops to capture it. When the Lightning League hear of Saw Boss' plans they race to where Audric has hidden the device to secure it before the Monster Minds can but accidentally trigger a self destruct sequence that threatens to destroy the device and the whole planet.

The Lightning League try to stop Saw Boss from taking control of the Edro Lifeship, a vessel which has been transporting the Edro civilisation towards a new home for 5000 years. The Edro defence system, Myrmidon, seems oblivious of the Monster Minds presence and refuses to let Jayce speak to the Edro and warn them of the danger they face.

The Lightning League travel to Dream World, a planet where (according to legend) people's dreams come true. At first, everything seems to go according to plan - Jayce and Audric are reunited, Gillian and Flora rediscover the Garden and Herc finally gets paid. But things take a sinister turn when the Monster Minds show up and destroy the Roots just as Jayce and Audric are grafting them; shortly afterwards, Audric is apparently killed in a Monster Mind ambush. Determined not to let Saw Boss win, the Lightning League head back to the Pride, but, with all their vehicles destroyed by the climax, will the power of their dreams be enough to save them?