Benjie and Sis have made a model train on the bathroom floor with toilet rolls and shoeboxes. The Rubbadubbers are all playing on it - Tubb is driving, Finbar is making the chuff chuff noise, Terence is stoking, and Winona is sounding the whistle. But Tubb wishes he could do everything. When his wish comes true, Tubb soon discovers he'd rather have his friends all aboard with him for fun.
