D.I.C.E.

Fortress F-99 becomes the first D.I.C.E.members to cross the fabled Heron's Gate. Beyond, they discover a whole other universe full of unexplored worlds and new dangers. Even as F-99 establishes a foothold in this new dimension, they also discover this new universe to have its own guardians: a myaterious group of five highly-trained warriors named the Heron Knights along with their unique biomechanical companions, the Knightbreakers.

In the aftermath of their first encounter with the Heron Knights, the D.I.C.E. team unearth a huge, mechanical structure resembling a Dinobreaker but shaped like a dragon. The D.I.C.E. team feverishly investigate its secrets and determine it to be products of the Heronians. Then, a mysterious boy emerges from within. Calling himself Clozon, he offers to give them the fortress if they simply take him home. Trouble is, home is a long way from Heron's Gate.

The D.I.C.E. team learn more about the Heron Universe from Clozon and his mother. Jet also learns to his astonishment that Clozon got the Dragon Fortress from a former member of the Heron Knights. Then, as they head out again, they learn of a shipwreck. Tracking the escape pod to a nearby planet, Jet discovers a very familiar face inside: his brother Zack, aka the Phantom Knight!

Commander Sid gives D.I.C.E. the rather ignominious tasks of showing some executives around the Heron Universe so they can establish trade relations. However, when D.I.C.E. reaches the planet Lakia, they encounter the Phantom Knight again, and his actions bring unexpected upheaval to the planet's floating city, forcing D.I.C.E. to intervene to rescue the people.

D.I.C.E. learns of a planet of traders being threatened by someone claiming to be the Immortal Pharaoh. They also say this Pharaoh can back up his threats by sending down meteorites at will. An investigation of Planet Elmut uncovers some familiar rivals behind the whole mess.

While tracking down rogue treasure hunters, an emergency situation causes the mysterious sealed room inside the Dragon Fortress to finally open. Inside is none other than the missing half of Zack's infamous Malusword. Sensing its awakening, Zack flies to the Dragon Fortress to retrieve it; however, desperate to learn his real motives, Jet takes the blade and challenges him to a battle. When the two halves of the Malusword come together, unexpected things begin to befall Jet.

The fusion of the Malusword has caused Jet and Motoraptor to go insane. Overwhelmed by the spirit of the Malusword, they go on a berserker rampage, overwhelming anything that gets in their way. And what's worse, the Heron Knights have united to stop him by any means necessary. The D.I.C.E. team need to find a way to break the hold of the Malusword before the Heron Knights decide to banish Jet, sword and all, to another dimension.

Haunted by his time possessed by the Malusword, Jet becomes obsessed with finding his brother. Disobeying orders, he hijacks the Dragon Fortress only to discover Chao is still inside. He agrees to help Jet follow the urging he's been feeling. Meanwhile, the rest of D.I.C.E. find they have no choice but to enlist help from the one group of people with the ability to get ahead of Jet: the Heron Knights.

In pursuit of the Phantom Knight and the Malusword, Team D.I.C.E. make their way towards the heart of the Heron Universe. Meanwhile, two Heron Knights are hunting wild Dinobreakers when they come upon a cave where the raw Pellets give off a strange radiation. When the mysterious energy knocks them out, D.I.C.E. decide to investigate it in case they're in danger.

The missing half of the Malusword has been found again, and Jet waits for his brother to arrive. But D.I.C.E. is determined to make Zack's approach as grueling as possible. Once again, brother will clash against brother for control of the Malusword. Jet fears the sword will overpower Zack like it did him while Zack claims to be obeying the voice of the sword in fulfilling a greater goal.

On the way to Planet Alec, Team D.I.C.E. come upon an odd sight. It is a village built in the shape of the D.I.C.E. logo. Upon arriving, they learn that the village had been found and improved upon by the legendary Captain Dice, founder of the organization, who had decided to build the village into a care center for the elderly residents within. His whereabouts since founding D.I.C.E. have been a mystery for decades. Could it really be that they've finally uncovered Captain Dice's final resting place?

Team D.I.C.E. and the Phantom Knight both approach the planet Alec, home to the Immortal Pharaoh. He awaits with the Lumasword. But the Phantom Knight does not travel alone anymore. Along a trail of ice, he leads a huge mass of wild Dinobreakers. Both the Heron Knights and team D.I.C.E. converge on the Phantom Knight, struggling to learn his motives for rebuilding the Malusword and confronting the Immortal Pharaoh.

The Immortal Pharaoh finally enters the battle himself, Knight Breaking with the giant statue adorning his palace. His cruel, relentless attacks on all standing, be they Dinobreaker, Heron Knight, or D.I.C.E. member, reveals something much more sinister: the Immortal Pharaoh is not himself but has become possessed by the spirit of the Lumasword. Suddenly, the Phantom Knight's mission and the voice of the Malusword become clear: to use the Malusword to defeat the Lumasword!

Jet takes up the Malusword in place of his fallen brother, and the battle with the Immortal Pharaoh and the Lumasword moves to the very core of the universe: the Star of Heron itself. But D.I.C.E. and the Heron Knights will not stand idle, either. They join the battle to provide Jet the cover he needs to reach the Pharaoh himself in the heart of the eternal star. There, Jet finally comes to understand his brother's motives.