Jestro the bad... the really, really bad!

LEGO Nexo Knights – Season 0

After yet another defeat Jestro thinks back on his life and all he did before he became bad. We see him try to be a wizard, a knight and, of course, a jester. The Book of Monsters starts training Jestro in evil and they attack a village. The knights arrive to fight and soon have Jestro and the Book of Monsters on the run.