After discovering his father's new girlfriend is his school PE mistress, Joe tries to sabotage their relationship, and attempts to reunite Jane and Roger.

After David sets his sights on Emily, she decides to live with Colin and Jennifer to avoid him. Joe and Felicity wreck Emily's favourite shirt.

Joe enlists King Arthur's help with a Camelot. Meanwhile, Emily worries that Jennifer is pregnant.

Joe has to decide which of his "dads" he will play with in the forthcoming father-and-son football match. Meanwhile, Robbie's attempts to be helpful threatens to ruin Emily's going away surprise for Colin.

Worried about household security after his friend Toby is burgled, Joe pesters Roger to fit more locks and an alarm to the house.

Jane and Emily try to become fit together, while David becomes a fanatical vegetarian to impress Lisa.

Joe and Felicity are delighted when cousin Danny comes to stay. But who has taken Emily's diary?

Joe is offered a place at Swindon School of Science, but receives conflicting advice on whether he should go.