 Whilst Luke has been away, several Back Half children (including Avery Dixon, who was sent to Back Half as punishment for helping Luke escape) round up those who have been in Back Half for longer and whose minds are almost completely broken and plan a revolution.They are stopped and blocked in a corridor and Stackhouse gives orders to kill them using poison gas created by mixing cleaning chemicals.As the gas is released, Avery, Kalisha, Iris, George, Nick and the others join together and fight back.