The 8.15 comes steaming into the terminus for the last in the present series.
Helping Ross King and Dianne Oxberry to stroke the boilers are children's presenters Andi Peters and Simon Parkin.
Sonia returns with The Wetter, the Better and there'll be tears with In Their Shoes.
Meanwhile, under the streets of Manchester, Charlotte Hindle visits a sewer. She also meets some actors who prefer playing on the pavement.
(Stereo)