Ninjago: Masters of Spinjitzu Season 11 Episode 15

A Cold Goodbye

Having learned Zane is not dead from Aspheera,but has been banished to the Never Realm, Master Wu prepares to go after him, but the Ninja want to come along as well. When he denies, they take matters into their own hands and defy him. However, Wu uses the Scroll of Forbidden Spinjitzu to stop the Ninja from leaving. However, the Ninja defeat him and go themselves to the Never-Realm, before Wu warns them that there is no way back - the reason it is called the Never Realm.