Eric and Bobby retrieve a box for Dungeon Master. Dispite the fact that they were under strict orders not to open it, Eric gets curious. Just as he pulls the pin from the lock, Dungeon Master appears and warns Eric to place the pin back in place before it's too late. But Eric is taken by surprise when a force blows the top of the box off and releases He Whose Name Cannot Be Spoken. He is Venger's master, pure evil, and a powerful entity. The Realm is covered in darkness and a whirlwind envelopes the land. Dungeon Master then instructs the kids to flee on foot, and he joins them. When Eric demands to know why he should follow any further, Dungeon Master simply informs him: We are running, Cavalier, for our very lives.

Back in the real world, a boy named Jimmy is pulled under his bed and vanishes. In the world of Dungeons and Dragons, the kids are lost. The Dungeon Master tells them they have to find the City at the Edge of Midnight, where children from this world and the theirs are being held prisoner. They then find an oasis, that's inhabited by a clan of monsters. When the monsters have them surrounded, a traveller by the name of Ramuud comes and saves them. He then leads them away from the cursed oasis to his own encampment. Ramuud then explains that long ago his daughter, Aisha, was kidnapped by the Nightwalker and is being held prisoner at the City at the Edge of Midnight. Wanting to return the favor of saving them from the monsters, the kids offer their help, but Ramuud tells them that it's not nessary. But when Bobby is kidnapped that night, they're forced to enter the City at the Edge of Midnight to fight the dreaded Nightwalker.

The kids stumble upon a young man, sick from exhaustion and hunger. His name is Kosar and he has escaped imprisonment by a demon called Queen Seris. She wanted Kosar out of the way so she can remain in rule, fearing the 1000 year-old ancient prophecy that must be fulfilled by a 'child of the stargazer.' The legend states: And on the night of star fall, the child of the stargazer shall come from a faraway land to stand in the Temple of Light. The demon shall be vanished and the child shall journey home. After an attack to take back Kosar, the kids start their journey to the Temple of Light. But when Kosar is taken back by magical means, Diana is taken back with him. Once there, they have to fulfill the prophecy until the others catch up with them.

After another attempt at getting home is foiled by Venger, the frustration is too much for the kids. They decide to take the fight to Venger and finish things once and for all. Their idea: Tiamat - Venger's mortal enemy. When they disregard Dungeon Master's next mission to embark on their own, he advises against it and then indicates where they can find Tiamat. A place called the Dragon's Graveyard, where old dragons go to die. The kids then start their journey to the graveyard, but not without the presence of Venger in the midsts.

Venger's enslaved skeleton warrior, Dekion, reports that he has found the Circle of Power, but it is held in the Lost Tower of the Celestial Knights. Only those with the pure of heart and could be a celestial knight themselves could enter the tower and survive it's test of courage. Even though Dekion was once a celestial knight, because he is under Venger's power, he cannot enter. But Venger has a few tricks up his sleeve. Meanwhile, the kids are told to go to the Lost Tower of the Celestial Knights in order to find their new way of getting home. When they meet Dekion they are cautious, but when he informs them that he is a victom of an evil wizards spell they agree to help him. But once inside the tower, the kids start seeing illusions that test their courage, and they all start to fall victom to their fears.

Dungeon Master sends the Young Ones to the walled city of Tardos Keep to save Queen Solinara and her people from Venger's besigement. But the evil wizard has a wicked surprise for the kids--Demodragon, a two-headed fire and ice spitting monster capable of trashing the entire Realm. Will they learn what the fabled treasure of Tardos Keep is before the out-of-control Demodragon destroys their chance to get home?

The children meet a girl who has been swept into the Realm, as they have, on a rollercoaster car. The girl, Terri, has the ability to dream the future. Together they set out to find the portal home that is hidden at the end of Venger's Maze of Darkness.

The kids are starving, and unable to catch any food. Even fishing results in catching a hydra, prompting the kids to defend themselves. But Bobby is poisoned by it's bite and the kids seek Dungeon Master's aid. Alas, they require a natural treatment: The Foot of a Yellow Dragon. One can be found North in the Garden of Queen Zinn. Along the way, they meet a strange creature named Solars, who allows the group to leave the ailing Bobby with him so they don't risk further injury. But the group is in for a surprise when they meet the servant of Queen Zinn and his trickery.

While searching for a mysterious ship that will take them home, the kids team up with another gang of lost children to save their elder, Alfour, held prisoner in Venger's castle along with the ship.

While resting in the Moon Forest, they're awakened during a sneak attack by Venger's Orc Army. Bobby and Hank are captured and Shiela tells everyone that she's going to follow the Orcs to see where they take them. The remaining three escape with these creatures called Cloud Bears. When Shiela searches for Hank, she's shocked to find him planning an ambush with the orc army, even saying that Venger need not worry and that everything will happen as planned. When he returns to the group, Shiela exposes him to the rest and he's branded a traitor by his friends. The truth is Hank is going along with Venger so he will not harm Bobby. If Hank so much as reveals his true cause for betrayal, he endangers Bobby's life. Caught between a rock and a hard place, Hank must still lead his non-trusting friends and help save Bobby.

A lonely but smart orphan, Lorne, finds a lost amulet that leads him into big trouble. He and Eric become fast friends through the usual exchange of insults and bad-mouthing, and the gang teams up with him on their search for the Stone of Astra. But the wizard Korlok also seeks the Stone, and is close on their tail.

After getting yelled at by Eric for botching up a thieving job, Sheila is anxious to prove her worth by befriending Karena, a young woman who is more than she appears to be. Soon the gang finds themselves caught in the middle of a very bitter family feud when they realize Karena is related to none other than...Venger!

Venger's got a new idea for eliminating his annoying young enemies, and pulls both a futuristic plane and a WWII Nazi fighter pilot into the Realm using his Crystal of Chronos. Venger intends to send Josef Mueller, the pilot, back to Earth to win the war for Germany, but after meeting the kids, Josef has other plans.

The children come across a knight named Sir John, who helps save them when they are being chased by a giant scorpion. When Dungeon Master sends them to battle a beholder in a distant valley, the children decide the knight is the perfect person to accompany them. The only problem is Sir John, in reality, is an utter coward.

The Darkling, a skeletal creature of darkness, kidnaps Hank. The kids have to convince the kindly Martha to help rescue their leader, before the Darkling claims his final victim and his Winds of Darkness destroy all light in the Realm. But Martha has been hurt by the creature one too many times and wants nothing to do with their quest.

Dungeon Master sends the children northward to the town of Helix to attend a local dragon-banishment celebration. On the way they meet Merlin in his magnificent sky castle. The wizard offers to make Presto his apprentice, only if the young mage chooses to leave his friends and stay there for the rest of his life. But is Merlin's once-in-a-lifetime offer all that it appears?