Michael continues his mission to shake up the school by appointing his old student friend Linda Radleigh as Head of English. However, the newcomer soon has her hands full keeping an eye on Emily, who sneaks out of school to see her sister on the day she is released from prison. Meanwhile, Chalky's crush on Janeece prompts him to join Jez's lunchtime fitness club and Michael tries to get closer to Sian over a late-night drink. Sarah Hadland (Miranda) joins the cast (thetvdb.com)