Badly behaved man Neil Morrissey stars in this long running BBC drama which kicks off its fourth series tonight, and is great for a good game of "spot the ex-soapstar". They can't all be Corry barmaids, surely. Set in a fictional school in Rochdale, the drama features good and bad teachers and pupils.  Head Teacher, Rachel Mason returns after her near death experience at the end of the last series, having being trapped in the school as a fireball ripped through it. With many new ideas for extended services, Rachel is more determined than ever to get the school back on track. However, her plans are dealt a severe blow with the arrival of the Kelly "family from Hell," including 15-year-old Earl Kelly, a borderline psychopath who likes to show off to the other pupils by showing them his gun.