LEGO [Master Builder Academy] - Hulk's Helicarrier Breakout Building Set - The Avengers Series (6868)Join the Avengers in an epic showdown with the LEGO [Marvel Super Heroes] Hulk's Helicarrier Breakout Building Set (6868), where thrilling battles and high stakes missions come to life. The mighty Hulk and Thor have captured Loki aboard the Avengers massive Helicarrier, but the villain is plotting his escape! Kids can recreate the action packed scene using the exploding containment cell, testing the heroes skills as they try to keep Loki locked up and