Henry and Ray think the world is ending when a dormant super volcano under Swellview becomes active. Piper is convinced that she has gluten intolerance.

Henry and Charlotte want to tell Jasper that Henry is really Kid Danger, so they decide to give him a test secret to prove that he is ready.

After Henry uses his new power to compete in a Dodge-A-Leen tournament, Ray, Schwoz and Charlotte go under cover to teach Henry a lesson.