Mistaken ID-Entity

S4 E6: We discover that one of our own has a dangerous secret. But for the time being our Gang are unaware of the threat. Jesse gets an unexpected boost to his music career. Fuelled by his success, he finds a way to confront his cyber bully and deal with the problem in an imaginative way. Meanwhile, Heath and Nicco draw closer, before their friend's strange behaviour leads to a dangerous confrontation. Luke and Ben are deep into the investigation of Zeb, the mysterious stranger - trying to figure out who he was and what he wanted from them. As they get closer to the truth, they find themselves under attack from someone they thought was a friend.