Knock Knock Detentionaire : Season 2 Episode 11

Lee finds that Lynch can track down who's Radcircle and they both go to confront him. While there, Lee gets trapped in a room and Lynch disappears. Radcircles contacts him from a TV in the trap room. Lee escapes and finds lynch's wallet with the address to his home.Lee then starts a search for Lynch. When arriving at Lynch's house, he spots Principle Barrage going into the house using Stealth Mode. Lee sneaks in as well and goes to Lynch's room and hides under the bed. Barrage almost caught him with his eye scanner, but it just missed coming into contact with Lee's skin. Barrage leaves, and Lee crawls out from under the bed. He then notices Lynch's computer, and he finds a video with Radcircles in it. In front of the computer, there was a voice modifier and his billboard is covered by sticky notes which have Knock Knock Jokes written all over it. This indicates that Lynch is Radcircles.