Bob, Wendy, Spud and the Can Do Crew arrive in historical Fixham Harbour ready for a brand new set of building adventures. They make many discoveries, along with new team member Scratch. Getting ready for Wendy's surprise birthday party proves to be a challenge, especially when Scoop tries to do everything himself. When Wendy's birthday present falls into the well the team are working on, Scoop realises he needs help from his friends to complete the job and get the party ready on time.