A 13-year-old boy lands a job as a sidekick to a superhero, and he must now keep his identity a secret.

As Henry tries to adjust to his new role as Kid Danger, he struggles to balance his schedule between crime fighting, school, family and friends.

Henry's life as Kid Danger is threatened when Charlotte grows suspicious about the secrets he has been keeping.

When Jasper is Kid Danger for Halloween, Captain Man mistakes him being Kid Danger instead of Henry. So it is now up to Jasper to save Halloween.

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.

When Piper is taken by a creature from another dimension, Captain Man and Kid Danger must rescue her from the evil science corporation that opened the portal.