LEGO Nexo Knights is a LEGO play theme from 2015. It is also an animated television series. The world of Nexo Knights has a medieval feel but is set in a futuristic world. The main heroes are the LEGO Minifigures Clay, Aaron, Lance, Princess Macy, and Axl. They are all young knights that have just graduated when disaster strikes in the city of Knightonia. Jestro, the court jester has turned evil and used the book of monsters to unleash all kinds of Monsters on the world. Together with the wizard Merlok, our young knights must save the world from these monsters.