S1, E2: When Jestro awakens, he's been blasted miles and miles away from the King's Castle by Merlok's explosive spell. And, it seems, all the books he was trying to steal have been scattered, too. The Book of Monsters broke Jestro's fall and now he can use the book to attack the people who laughed at him. Meanwhile, the King and his newly-trained Knights pick through the rubble of Merlok's library. They'll have to figure something out because Jestro and his newly made magic monsters attack King's Castle! Clay organizes the Knights to defend the kingdom. It takes all their training, plus the help of an old friend . . . MERLOK! Only now he's MERLOK 2.0. Ava has been piecing together what happened and discovering that the "ghost in the machine" she's been chasing is really Merlok in digital form. Now, he can use his magic digitally and he downloads just the right weapons to the struggling Knights! They finally foil Jestro's attack with Merlok's help and officially become NEXO KNIGHTS!