The Penderwick sisters are at home on Gardam Street and ready for an adventure! But the adventure they get isn't quite what they had in mind. Mr Penderwick's sister has decided it's time for him to start dating - which can only mean one thing: disaster. Enter the Save Daddy Plan - a plot so brilliant, so bold, so funny, that only the Penderwick girls could have come up with it. But does Mr Penderwick really need saving, and can the sisters solve their own problems at the same time?