Jasper gets the chance to take his crush to Cactus Con, but when a mysterious villain gets involved in the convention, the entire gang is forced into action.

After a criminal steals Kid Danger's superpower and learns his secret identity, goons are sent to Henry's house to attack; while Henry and Ray fight to protect Henry's family, Jasper, Charlotte, and Schwoz work to get his power back.

Schwoz invents a vacuum to help Henry clean his house, but it accidentally sucks Charlotte inside; when Henry's family hears Charlotte and thinks the vacuum is haunted, Ray must distract them while Henry finds a way to get her out.

When Captain Man shows up with a cool new massage chair, Henry, Charlotte, and Jasper compete in a series of physical and mental challenges to see who wins the chair.