Julian is going on a class trip to visit the old Greendale railway station. The children find a rusty old steam train in one of the dilapidated sheds. Their discovery sparks off a kind of railway fever among the residents of Greendale. The station is lovingly restored by the villagers while Pat and Ted start renovating the engine. Julian's penpal Meera lives in Pencaster and her father, Ajay, is a railway enthusiast. So it's thanks to one of Julian's letters that Ajay comes to Greendale to help Pat and Ted get every nut and bolt in working order, ready for the grand re-opening of the station. And with just days to go before the celebrations, the Greendale Rocket comes to the rescue when Pat's van just can't get through the flooded lanes to deliver the mail. The opening day finally arrives: the residents of Greendale are happy and proud to have a station once more and Julian is even more delighted when he discovers that Meera's family is moving from Pencaster to Greendale.