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“I Know Your Secret”
Season 2, Episode 19
Air Date

July 17, 2016

Prod. Code



Dan Schneider
Christopher J. Nowak


Russ Reinsel

Episode Chronology

Danger & Thunder


A Fiñata Full Of Death Bugs (Season 3)”

I Know Your Secret is the nineteenth episode and season finale of the second season of Henry Danger. It premiered on July 17, 2016 to an audience of 2.60 million viewers. 


Piper is calling Zapathon because she ordered a phone case but she got a tanning gun. Piper tells them the serial number and checks if it's good. Jake got Kris a flashlight for their anniversary. Jake goes to get her a better gift. At school, Jed is shooting darts at a balloon in the ceiling. Oliver and Sidney walk by and tell Jed to take it easy. Jed calls Sidney a rude kid. Henry, Charlotte and Jasper arrive and Jasper said he's making a belt for his class and measures Charlotte's waist and leaves. Henry laughs and Charlotte says she's gonna tell a girl named Amy that Henry likes her. Henry opens his locker and gets a mysterious note from someone claiming to know his secret and worries that this person may know his secret identity, as he only has one secret: being Kid Danger. Ms. Shapen arrives and Jed accidentally shoots a dart that lands on her shoulder.

At the Man Cave, Henry shows Schwoz and Ray the note. Ray asks Henry if he did anything. Henry says he did nothing. Schwoz scans the note says that the last person to touch it is Henry. Henry says the note was in his hand. At Henry's house, Piper starts running a tanning salon in the house after receiving a tanning gun by accident instead of a phone case and customers include Oliver and Mrs. Hendricks. Henry and Charlotte arrive and Henry tells Kris and Jake why they let Piper run a tanning salon in their house. Jake says it keeps Piper from screaming at him and Kris. Henry goes up to his room and finds Jasper holding a sign that says "I Know Your Secret".

Henry is surprised that Jasper knows. Piper reveals to Charlotte that the secret was that Henry took Kris to see Galaxy Wars 10 on opening night instead of Saturday night with Jasper. In Henry's room, Henry's watch starts beeping. Captain Man is on the hologram and says they have an emergency. Henry winds up accidentally transforming into Kid Danger in front of Jasper, who reveals that "he knows the secret". Charlotte goes up to Henry's room. Charlotte arrives and sees that Henry is Kid Danger in front of Jasper. Jasper faints in surprise. Charlotte and Henry then realize they have a problem so they call Captain Man and tell him to bring the Memory Wiper. Downstairs, Piper leaves for a bathroom break and gives the tanning gun to Jake. The cops arrive and find out that there is an illegal tanning salon in the house. The cops assume it's Jake because he had a tanning gun in his hand and Jake is arrested for Piper's salon being illegal. In Henry's room, Captain Man says that Jasper's memory will have to be erased, but that would also mean erasing all of his memories. Captain Man and Charlotte hide in the closet. Jasper wakes up and Henry tries to bond with Jasper "one last time" but can't do it, and threatens to give up his job of being Kid Danger if Jasper's memory is erased. Captain Man begrudgingly agrees not to erase Jasper's memory, and one of the customers of Piper's illegal salon comes up unexpectedly and recognizes Kid Danger as Henry. Henry wants the customer's memory erased so his memory is erased before he can spread the truth, and Jasper's first deed for Captain Man is getting the customer out of the house.


Main Cast

Recurring Cast

Minor Cast


The person who created this note is... Henry Hart?
— Schwoz
We have to erase Jasper's memory.
— Captain Man
WOW, I can't believe this, my best friend is Kid Danger!
— Jasper
You've always been a good friend to me, Kid Danger. I'm proud of you.
— Jasper to Kid Danger


  • This is the finale of Season 2.
  • This episode was a lead-in to the 2016 Kids' Choice Sports Awards, and was also simulcast on sister networks, Nicktoons and TeenNick.
    • Ironically, more people watched this episode than the awards show.
  • This is the 2nd highest viewed episode of the show, behind Hour of Power.
    • It was viewed by 2.60 million viewers on Nickelodeon, 248K viewers on TeenNick, and 211K viewers on Nicktoons, gaining 3.06 million viewers in total.
  • This is the first episode to air on a Sunday.
    • In addition, it is the first episode to air at 7:30 p.m. instead of 8:00 p.m.
  • This episode acts as a prequel to the first episode of Season 3.
  • Zapathon was previously shown in Sam & Cat.
    • Zapathon is a parody of Amazon.
  • Jimmy Fallon is mentioned.
  • During the promotion for this episode, Jasper, Piper, Sidney, Oliver, Ms. Shapen, Jake, Kris and a shirtless guy were suspects for who gave Henry the note.
  • This is the first episode where Henry appears as Kid Danger in the Hart's house (unless you count Opposite Universe).
  • This is the second time Jake gets arrested.
  • This is the first time Henry was in his Kid Danger suit without his mask.
  • Jasper finds out that Henry is Kid Danger.
  • The air date of this episode was the same as the last episode of Sam & Cat and "SpongeBob: Lost In Bikini Bottom".
  • It is stated that the movie "Galaxy Wars 10" is in theatres, which is continuity of the fact that "Galaxy Wars 9" was in theatres in Spoiler Alert.


  • When Kid Danger takes off his mask, the silver paint on his eyelids disappears
    • This could have been intentional.
  • In Substitute Teacher, the memory wiper only erased Ortho and his dad's memories. In this episode, it rendered the shirtless man unable to even speak.
    • However, this could be because of an upgrade.

International Premieres

  • September 22, 2016 (Latin America)
  • October 20, 2016 (Spain)


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To view the I Know Your Secret gallery, click here.

Video Gallery

ved Henry Danger episodes
Season One
The Danger BeginsMo' Danger, Mo' ProblemsThe Secret Gets OutTears of the Jolly BeetleSubstitute TeacherJasper DangerThe Space RockBirthday Girl DownToo Much GameHenry the Man-BeastInvisible BradSpoiler AlertLet's Make a StealSuper VolcanoMy Phony ValentineCaved InElevator KissMan of the HouseDream BustersKid GroundedCaptain JerkThe Bucket TrapHenry & the Bad Girl, Part 1Henry & the Bad Girl, Part 2Jasper's Real Girlfriend
Season Two
The Beat Goes OnOne Henry, Three Girls: Part 1One Henry, Three Girls: Part 2Henry & the WoodpeckersCaptain Man: On VacationThe Time JerkerSecret BeefHenry's Jelly Christmas DangerIndestructible Henry, Part 1Indestructible Henry, Part 2Text, Lies & VideoOpposite UniverseGrave DangerOx PoxTwin HenrysDanger & ThunderI Know Your Secret
Season Three
A Fiñata Full Of Death BugsLove MuffinScream MachineMouth CandyThe Trouble With FrittlesHour of PowerDodging DangerDouble Date DangerSpace Invaders, Part 1Space Invaders, Part 2Gas Or FailJAM SessionLicense to FlyGreen FingersStuck in Two HolesLive & Dangerous, Part 1Live & Dangerous, Part 2Balloons of DoomSwellview's Got Talent
Season Four
Sick & WiredBrawl in the HallThe Rock Box DumpDanger GamesToon in For DangerMeet Cute CrushBack to the Danger: Part 1Back to the Danger: Part 2Budget CutsDiamonds Are For HeatherCar TrekToddler InvasionCaptain Man-kiniSaturday Night LiesHenry's Frittle ProblemSpelling Bee HardUp The Stairs!Danger ThingsRubber DuckFlabber Gassed
Season Five
Henry's BirthdayWhistlin' SusieThumb WarThe Great Cactus ConPart 1: A New EvilPart 2: A New DarknessPart 3: A New HeroBroken Armed and DangerousKnight & DangerGrand Theft OttoThe Whole Bilsky FamilySecret RoomMy Dinner With BigfootCharlotte Gets GhostedI Dream of DangerHoley MoleyLove BytesDouble-O DangerMassage ChairHenry Danger: The MusicalSister Twister, Part 1Sister Twister, Part 2A Tale of Two PipersStory TankCaptain MomVisible BradEnvyGram WallHoliday PunchMr. Nice GuyTheranos BootRumblrCave the DateEscape RoomGame of PhonesRemember the CrimesThe Beginning of the EndCaptain DrexThe Fate of Danger: Part 1The Fate of Danger: Part 2