Joe and Frank find themselves on the strangest bodyguard duty ever--protecting the five children of a visiting dignitary during a field trip to the National Library of Education in Washington, D.C. It might sound easy, but before this assignment is done, they're going to need help from the most unex[...]

Frank and Joe go undercover at a national spelling bee where a mysterious madman known as the Hangman is determined to erase the competition.[...]

Back in their home village after the battle with Garmadon, the four ninja are hoping for some R&R. Instead, they get drawn into a fight to the finish with the most powerful and unexpected foe they have ever faced: Sensei Wu--their own sensei Can the students hope to defeat the master?[...]