Pat was on his way to the Post Office to get his brand new vehicle, the Royal Mail Post Bus. He takes Granny Dryden, Miss Hubbard and Ted Glen on their way to Ingledale. They went to buy some drinks and some food from Sam Waldron, stopped by PC Selby who was putting road blocks at the unsafe bridge, so they take a shortcut on the road to Thompson Ground.They suddenly heard the Reverend Timms cycling on his old bicycle straight into the barn, so he has to go with Pat on his Post Bus to Ingledale while Alf mended his bike. They finally arrived in Ingledale, Granny Dryden goes missing but she soon comes back and they set off home again.But Dorothy calls Pat about Mrs Goggins who has been on the phone thinking he might have had an accident on his Post Bus so he gives her a ring while his friends have a cup of tea. Pat soon got his friends home safe and sound.