It is the day of the annual Greendale to Pencaster Duck Race on the River Penn and Pat is delivering the ducks.

It is Alf Thompson's birthday and Dorothy has bought him a new quad bike. After picking up his special delivery from Ben and the quad bike from the station, Pat must deliver them to Thompson Ground before Alf gets home.

Alf Thompson's homing pigeon Cedric is taking part in another race and Pat has to deliver a tracking device to attach to the pigeon's leg. It must be delivered by noon, but when a magpie steals the special delivery, Pat is nearly late. He has to use Julian, Charlie and Meera's flying camera to get it to Thompson Ground on time.