After spending their life savings on a wedding venue mix-up, Mitchell risks losing Kayleigh. Class K come to the rescue, promoting a boxing match at Abbey Grove with dramatic consequences for Warren.

When Mitchell gets a bit part in a gangster film, it goes to his head. Swayed by the hype, Hoburn instructs him and Stephen to swap jobs - but with the school drama competition looming, Class K aren't keen on the changes.

Hoburn enlists fitness guru Mo Dix to get the school back in shape. While Class K protest under Mo's regime, Stephen falls for him, going to great lengths to get rid of Mitchell so Mo can replace him as the new PE teacher.

The recovery of Stephen and Mitchell’s old time capsule prompts an overnight break-in and some ghostly encounters and revelations for Class K. Hoburn is desperate to keep the identity of the new art teacher a secret.

When Jinx abandons her studies to spend more time with Mitchell, Class K struggle with their exam prep and ask Fraser to help, leading to an unusual interpretation of Pygmalion - involving an actual pig.