Kevin and Leo's hacking lands them in serious trouble. Floyd confronts Justin and Tiffany about their relationship and Sonya puts her friendship with Christine at risk. Kevin sparks a serious security risk when it's revealed he's hacked into a multinational data organisation. The school is in lockdown but Kevin sees it as a chance to prove his skills and turns the situation to his favour. Justin and Tiffany's relationship is uncovered by a shocked Floyd. After he and Justin get into a fight, Tiffany fears he will tell Vaughan and Allie and decides to take matters into her own hands. When Sonya's story - a thinly veiled reference to Christine's alcoholic past - gets circulated around the school, it's a race against time to stop it landing in Christine's hands.