The pupils think it's hilarious when they see a fluffy bunny climb onto the roof of Waterloo Road School. But Izzie is mortified to discover that it's her unreliable ex-husband Jimmy Grainger with a serious message. Andrew discovers a homework scam and makes Lewis Seddon scrub graffiti of the walls as punishment. Jack is surprised when Steph's French class marks mysteriously improve. Andrew and Kim are extremely suspicious - will Steph's highly generous marking methods cost her her job? Meanwhile, Tom and Lorna's marriage is in serious trouble.
This episode got 4.59 million viewers.