With Christmas coming and both of them penniless, Wolfie gets Ken to pray for some money for them, which seems fulfilled when they notice two of the stamps on the sheet they bought appear to have an imperfection and should be valuable so Dad gives them to stamp expert Uncle Arthur to inspect. Christmas Day comes round with presents going to the wrong - but happy - recipients and a visit from Uncle Arthur, but he does not bring the news everybody wanted. (thetvdb.com)