Each episode follows the adventures of Pat Clifton, a friendly country postman, and his "black and white cat" Jess, as he delivers the post through the valley of Greendale. Although he initially concentrates on delivering his letters, he nearly always becomes distracted by a concern of one of the villagers and is usually relied upon to resolve their problems. Notable villagers include the postmistress, Mrs Goggins; Alf Thompson, the farmer; and the local handyman and inventor, Ted Glen.