LEGO Nexo Knights (2015)

S01E03 The Power of Merlok

As Jestro unleashes the Book of Monsters to wreak havoc across the land, the Knights respond with a thrilling upgrade to their operations: the formidable Rolling Castle, called the Fortrex. Equipped with advanced capabilities, this impressive new headquarters empowers them to combat Jestro and his monstrous minions effectively.