Knighton is buzzing with festivities on the graduation day of the Knights Academy. In the middle of the party the vengeful jester Jestro releases the dangerous Book of Monsters and starts making monsters that tear the place apart. The knights can’t stop them. The only hope is that Merlok the wizard has a final trick up his sleeve.
While visiting Axl’s home town the knights get a trace on the Book of Deception. To secure the book they must brave a dangerous maze where nothing is what it seems. To make matters worse, Jestro is also looking for the book and soon the quest turns into a race through a maze filled with traps, dead-ends and terrible creatures.
Merlok is now fully integrated into the rolling castle Fortrex, but Jestro is also upgrading. He finds the Book of Chaos, creates a rolling fort and sets off to kidnap King Halbert who is on a promotional tour. The knights scramble to help, but their teamwork is terrible. Can they overcome their differences in time and save the King and Queen?
With the teamwork in place, the knights seem to have the better of Jestro. That is until he finds the Book of Fear and conjures up Whiparella. She can make the knights’ worst nightmares come true and she gets right to work. Soon she has the team of knights running scared. Except for one. But can one knight save the whole team?
Aaron’s fearlessness saved the team, but now they have a new challenge. Lance got a part in a movie called ‘The Golden Castle’ and brought the rest of the team in front of the camera. The Book of Monsters wants to eat the script so he can make everybody do as he pleases and soon there is a bit more action on set than the director planned for.
When Jestro finds the Book of Destruction, chaos spreads across the realm. The knights must split up to stop him, but one by one they are defeated and captured. Jestro and his army of cohorts march on Knightonia and only King Halbert and Robin’s Black Knight stand in their way. Will Knightonia fall and become Jestroville?
A storm is brewing over Knighton. Monstrox has taken the form of a cloud and is raising an army of lightning infused Stone Monsters. His first target is the new Lavalands Amusement Park.
The arrival of Merlok 2.0 and his NEXO Powers saved Knighton, but all over Knighton there is struggling going on. Jestro is struggling with being good at being evil, the knights are struggling with being a team and Ava is struggling with integrating Merlok 2.0 into the systems of the knights’ amazing new HQ. And then, off course, Jestro attacks…
Something truly strange is happening in Knighton. The knights who were supposed to protect and serve the people are attacking and pillaging villages all over the realm. Of course Jestro is behind the plot, but luckily his plans are foiled as a Black Knight appears and stands in his way. But can the Black Knight stop the terrible Jestro?
A magic blast from Merlok the wizard saved the day, but now Merlok is gone and Jestro is on the loose with the Book of Monsters. Furthermore there is a strange bug in the royal computers. When Jestro attacks with a monster army, the kingdom of Knighton seems doomed. But then something magically happens…
Jestro is marching on Knightonia with a mighty monster army. Aaron breaks free and starts rescuing his fellow team members, while Merlok and Ava look for a special NEXO Power and Robin and King and Queen Halbert suit up to defend the city. The only question is, are they strong enough to stand against a vengeful Jestro?
When the NEXO KNIGHTS are sloppy in a fight with Jestro, Merlok 2.0 sends them back to the Knights’ Academy. Not only for a brush-up but to find out what Jestro is after in its hallowed halls.
When Jestro uses the Book of Greed to rob Auremville of its riches, he also gets Lance’s parents as prisoners and these demanding rich folks are too much for even monsters to handle.
The Knights are tasked with protecting the King’s valuable Ned Knights comic book during the Bookingheim Knight-a-Con. But with all the costumed kids there, will they recognize the real Jestro and Book of Monsters coming to get them?
Rival to the King, Jorah Tightwad thinks his knights – the Tighty Knighties – are easily better than the NEXO KNIGHTS, so he challenges King Halbert to prove who’s better during the King’s Birthday Tournament.
Axl and Chef Éclair must enter a cooking contest to try to keep Jestro from getting the hottest chili recipe in the realm.
When the other NEXO KNIGHTS decide they need a vacation from Clay, they send him on a holiday not knowing that he’s going to a resort that houses an evil book or that Jestro will be heading there, too.
The Book of Monsters catching a cold means trouble for the NEXO KNIGHTS when he can create an entirely new kind of “snotty” monster.
The Book of Betrayal leads Jestro and his Monsters to Funnyton – the funnies town in the kingdom. When the Knights arrive to capture him, they discover (to their shock) that Jestro and the Book of Monsters are now the town’s top comedians!
In a massive chase around Knighton, the NEXO KNIGHTS attempt to keep the Book of Betrayal out of the Book of Monster’s grip. But the evil book is persistent. Will he get the final piece of his evil puzzle?