Mastermind Detentionaire : Season 2 Episode 5

Tina's younger (and for some reason, smarter) sister Ruby turns herself in because she was behind the prank. Lee tries to find out if she is involved in the prank and Tina investigates whether she is involved in the prank or used by Lee (in her words). Cam helps Lee track down the real Radcircle and eventually bumps into the figure, dropping Radcircle's phone in the process. Ruby confesses to Tina and Lee that she wasn't involved in the prank and wanted detention so she can't go to university. Lee is then given Radcircle's phone and detention from Barrage back. Lee charges Radcircle's phone, he can't wait to use it to find out who he is. The episode ends with Lee leaving his room for dinner and Radcircle's phone being fully charged and is locked.