After learning their father was the best warrior in island history, Boomer and Brady enroll in Kinkow Fight School. When Mason gives the kings special treatment, jealousy overcomes Mikayla. Taking Lanny's advice, she decides to test the kings' newfound confidence and skills by pitting them against Atog the Giant. But when Mason finds out, Mikayla tries to get the kings to back down, but it's too late, the kings are eager to prove their inner warrior