The Fall

S4, E10: The Monstrox Colossus attacks the city! The entire city has turned out for defense as Robin continues his secret project in Merlok’s Tower at the castle. The King and Queen and Brickland and Sir Griffiths are seeing to the city’s defenses – all being coordinated by Clay from the Fortrex. As Jestro and Mergana with a horde of monsters arrive just in time to see the Colossus crush the Fortex! It smashes it to bits! They finally find out what Robin is working on…turning Merlok’s Tower into a ROCKET to fight the Colossus! Clay says they must launch the Rocket Tower as their last hope. But before they launch, they get a call from Ava. She’s got another passenger for them…Merlok steps out of the battered Fortrex in Robin’s old Mech and is now…MECHLOK! He can now directly use his powerful spells in battle! Finally, the Rocket Tower launches and the NEXO Knights, in Battle Suits, attack with Mechlok and battle to bring the Colossus down!