Mr. Capp reveals he has had a life changing experience over the holidays.

Miss Kinder is still having problems convincing people that she is an adult. The new maths teacher turns out to be the square root of terrifying. Mark gets caught bunking off lessons.

Juan Castanetta takes another unusual approach to teaching Spanish. Mr Capp tries to be cool.

Mrs Mark and Marcella form a surprise bond, much to Mark's horror. Just when everyone's getting sick and tired of Mrs Hushman, everyone's favorite maths teacher returns.

It's World Book Day and the Dockbridge High staff are very excited about showing off their costumes. Mrs Mark, Mr Capp and Joy all share their favourite books whilst Mr Christopher celebrates the greatest book of all time - his autobiography.

New teaching assistant Mr Nappy discovers that being in a school and taking care of three babies doesn't mix. Billy brings his mum into school. Miss Davis shows off her wind instrument in music.

There's a leak in the roof above Hilary Head's office so she forces the whole school to get involved in raising money to fix it. Mr Christopher releases a charity single and Mark chooses to do a sponsored silence but finds it harder than expected when Billy embarrasses him in front of Marcella.