A battle of wits is in danger of escalating into an all-out war when TJ challenges Ivor Willis, the manager of Blimpy's, to a friendly trivia quiz. With secret weapon Lily up their sleeve, the Spatz team is confident of blasting the Blimpettes clean out of the water – until Lily's grandmother falls ill and she has to go away for the week. Meanwhile, Jo's part-time jobs threaten to knock the stuffing out of her.