LEGO Ninjago | S15E6 | A Painful Promise

Master Wu prevents Aspheera from leaving by agreeing to a series of trials, but the Ninjas return just in time with Aspheera's staff. When the police arrive, the Ninjas battle the New Ninjas to buy Aspheera time to drain Nya of her elemental powers. Nya's humanity is restored, but as Aspheera escapes in the chaos, she receives an invitation to the Council of the Crystal King - and the Ninjas are arrested.