After accidentally activating an atomic bomb in the Man Cave, Ray and Henry decide to drive it out into the Swellview desert in order to save their city.
Captain Man and Kid Danger are upset when a new crime-fighting team emerges in town. They discover, however, that the new duo are their biggest fans. After an unfortunate incident, the Thumb Buddies seek revenge on our heroes.
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.
Henry is trapped at home with his family while Captain Man heads out to save the founder of TwitFlash; Charlotte and Schwoz deduce an evil intent that could change the world forever.
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 works to create an anti-virus to stop an evil plan; Kid Danger and Captain Man battle a villain; Kid Danger's heroism is put to the ultimate test as they fight to save the world.
When the Knight Squad's archenemy, Ryker, is unleashed on Swellview, Kid Danger and Captain Man take him down at Burger Castle only to be tricked into joining forces with the villain.
When Piper's school parrot, Otto, starts to repeat that Henry is Kid Danger, Henry and Jasper have to stall until Ray, Charlotte and Schwoz can find a way to fix things.
Captain Man divides the team by declaring a "Heroes Only" room in the Man Cave for his and Henry's exclusive use. They others respond in kind. Enmity develops.
Schwoz loans his Super Sucker vacuum to help Henry clean his house, but it accidentally sucks Charlotte inside. Hearing Charlotte's voice, the family thinks the vacuum is haunted and hires Ray to exorcise the ghost.
Things get a little buggy when Schwoz installs a new operating system on the Man Cave Computer designed to detect and eliminate threats all over Swellview.
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.
When Frankini uses a device to put a musical curse over Swellview, Kid Danger and Captain Man are forced to find a way to stop him, but when Captain Man cracks under the pressure, it's up to Kid Danger to remind him how to be a hero again.
Henry gets an unexpected visitor claiming to be from the future. When a boy-robot killing machine steps onto the scene, the gang must find a way to save everyone from an apocalyptic future.
Big steaks are on the line when Henry claims he can't be scared. Schwoz uses a machine that allows Henry to virtually experience the spooky stories that everyone in the Man Cave tells him in an attempt to prove Henry wrong.
Captain Man is being a baby about having a baby. Since labor pains leave him helpless, Kid Danger and Piper step up to take on a couple of slick grease thieves.
As Captain Man and Kid Danger guard Swellview's newest attraction, the EnvyGram Wall, Captain Man destroys it while trying to eliminate a small bird. Kid Danger and Captain Man have to figure out a way to replace it.
A new species of moth is eating all the Christmas trees in Swellview, so Captain Man and Kid Danger head over to Neighborville to buy more. On the way back they're attacked by shady tree dealers and have to fight to save Christmas.
A vigilante in a smiley-face mask has been punishing Swellviewians for being rude in public. Kid Danger and Captain Man's investigation leads them to the TV set of Mr. Wallabee, a local TV celebrity who hosts a show for kids.
Rather than own up, Henry and Jasper travel into an alternate catlike dimension to steal a duplicate of Ray's newly acquired prized movie prop that the gang unintentionally destroyed.
Captain Man, sick of fighting the same old villains, is convinced to make a profile on a matchmaking app for heroes and villains. Kid Danger agrees to do the same and two of them set up a double-fight to square off with some new villains.
Henry and the gang set up a secret underground restaurant in the Man Cave for Charlotte's private dinner with music superstar Jack Swagger. When word gets out that Jack Swagger is in town, some unwanted guests crash the party.
When a young girl chains herself outside of Junk-N-Stuff, Kid Danger and Captain Man are forced to help find her beloved phone. While on a stakeout, they unexpectedly run across some familiar faces with a devious plan.
Henry tells Piper about all the adventures she missed while he was off fighting alongside Captain Man as Kid Danger. But then Piper, Ray, Jasper, Charlotte, and Schwoz join in and share a few memories of their own.
Kid Danger reveals to Captain Man that he doesn't want to be stuck in Swellview and be his sidekick forever. To make matters worse, Kid Danger is recruited by another town to be their hero.
Captain Man's old sidekick and nemesis, Drex, returns from the past with an army of cavemen to finish off Captain Man once and for all. Kid Danger may be the only one who can save Captain Man now.
Kid Danger and his friends try to figure out how to get Captain Man back from the past, while Drex furthers his scheme to erase Swellview's memory of Captain Man forever.
Kid Danger and Captain Man battle Drex on top of a blimp to stop him from erasing Swellview's memory of Captain Man, but when the blimp aims straight for the Swellview Baby Hospital, one hero must stay behind to save the day.
