Mattie turns a photo of Melissa shouting at Alex into a meme, but it gets out of control when other students add spiteful comments to the photo. Who will tell Melissa, and how will she react? Meanwhile, Morag feels she's on a different wavelength to the rest of her class and makes friends with two students in the year above. But will they want to hang out with her when they realize she's Mrs Carter's daughter?

With Melissa still off school, Mrs Carter continues to investigate who started the meme. Mattie is terrified he will get the blame, especially when Rio finds out about his involvement. Will the real authors of the spiteful comments step forward?