Ridderne får til opgave at beskytte kongens dyrebare Ned Knightly-tegneserie under Ridder-messen i Bookingham. Men med alle de udklædte børn på messen, vil de så opdage, når den rigtige Jestro og Monsterbogen angriber dem?
Die Nexo Knights Ritter sollen eine geheimnisvolle Schachtel für den König transportieren. Bevor sie ihr Ziel erreichen, werden sie jedoch von Jestro angegriffen, der großes Interesse an dem Inhalt der Schachtel zu haben scheint. Was sich wohl darin befindet?
The Book of Monsters plans to consume a limited edition copy of a Ned Knightley comic book, which will guarded by the Nexo Knights until it is won at a costume contest at Knight-A-Con (this show's parody of the San Diego Comic Con). Robin is also attending the convention using his newly designed Mini-trex (a miniature version of the Fortrex). When General Magmar gets impatient with Jestro's plan to blend in with the attendees, he launches an all out attack on Knight-A-Con which causes the comic book to get lost in a crowd of terrorized attendees. Fortunately, the Mini-trex is able to extend the range of the Nexo Knights' connection to Merlok 2.0, allowing them to obtain their Nexo Powers and find the book. Because of this, Robin wins first prize at the costume contest and thus, he and the Nexo Knights get to keep the comic.
Jestro et le Livre des monstres se déguisent pour dérober une précieuse bande dessinée lors d'un festival, mais une invention de Robin arrive à point nommé.
De NEXO KNIGHTS- ridders krijgen de opdracht om gedurende Boekenheim Ridderbeurs voor de koning een bijzonder kostbaar stripboek van Ned Knightly te bewaken. Iedereen is daar verkleed; zullen ze dan de echte Jestro en het Boek der Monsters wel herkennen?
