Knight & Thunder & Danger is a special crossover episode of Henry Danger, The Thundermans, and Knight Squad.
Ryker breaks out of Swellview Prison and plans to get his revenge on Arc, Ciara, Captain Man, and Kid Danger. Meanwhile Max and Phoebe Thunderman are visiting Captain Man and Kid Danger. Once Ryker arrives, Schwoz uses the portal machine and sends Arc and Ciara to the Man Cave. They all team up and defeat Ryker.
- Jace Norman as Henry Hart (Kid Danger)
- Cooper Barnes as Ray Manchester (Captain Man)
- Riele Downs as Charlotte Page
- Michael D. Cohen as Schwoz Schwartz
- Kira Kosarin as Phoebe Thunderman
- Jack Griffo as Max Thunderman
- Owen Joyner as Arc
- Daniella Perkins as Ciara
- Geno Sergers as Ryker
- This is the first multiple crossover for Nickelodeon.
- Jasper Dunlop and Piper Hart do not appear in this episode.
- This marks Jasper's first absence in the series.
- This takes place after The Thundermans episode Thundermans: Secret Revealed as Phoebe said Max is no longer evil.
- This episode confirms that Drake & Josh, Zoey 101, iCarly, Victorious, Sam & Cat, Henry Danger, Game Shakers, Danger Force, The Thundermans, The Haunted Hathaways, and Knight Squad all take place in the same universe.