When Dodger, Packer and Scrambler learn about the Three Musketeers they decide to become the Three Musketrucks. Before they can play, Bob sends them to the docks to pick up an important delivery for the Bob Houses. At the docks, Scrambler takes the first delivery that he can find, but it's the wrong one. Returning to the docks, the trucks find another delivery, and board a ferry to pick it up! When the ferry leaves the dock they don't know what to do. Will the three Musketrucks be returned to dry land? Will they make the delivery for Bob in time? Bob is building some salt pans by the beach for Annie Pickles. Scoop is determined to be mega-helpful. Unseen by Scoop, Bob accidentally breaks the sluice gate section of the pans. Then, Scoop slips on some seaweed, falls into the gate, and thinks that he has broken it. He panics and does his best to keep Bob away from the broken gate until he can think of a solution, with chaotic results. When the time comes to fit the gate, Scoop realizes that he has no option but to own up. He's astonished to learn that it was Bob who broke the gate all along. Wendy brings materials to fix the gate and the salt pans are working to perfection!