The Nexo Knights discover that in the latest plot from Jestro and the Book of Monsters, they must defend Knighton from villains that look exactly like them, while everyone else believes that they are the ones who have turned evil.

Join the LEGO® NEXO KNIGHTS™ as they master NEXO Powers and battle fearsome fire monsters in DK Reader L3: LEGO NEXO KNIGHTS: Monster Battles.

Meet a group of brave knights as they embark on an epic adventure to stop a villainous jester and his band of monsters from taking over the kingdom. Learn about the exciting realm of Knighton and what it takes to graduate from Knights' Academy, go on thrilling quests,

...

Jestro, the Book and their monsters are still on the loose, causing havoc all over the kingdom. No place is safe. In their relentless search for the lost magical Books, they are growing ever powerful and it will only be a matter of time before they can conquer the entire kingdom. The NEXO Knights are now an efficient monster-fighting unit, but even so, they have to upgrade their equipment and NEXO powers to keep up with the ever-growing threat.