Mr. and Mrs. Pembroke have never had a vacation alone since they were married so they are delighted to be able to get away for a week, leaving Charles in charge of taking care of the house and the kids.
Stan's mother, Irene, comes along to stay and assist Charles and while there, she tells him about a brand new business venture she is interested in which involves a whole new era in pizza! The idea is a very good one and with help from Charles's contacts in the 'pizza' world, Irene realises that she definitely has a winner on her hands.
Charles is pleased that he has been able to help her but is extremely surprised when she compliments him on his efforts AND asks him to help her out in the new venture. Naturally, Charles is very tempted. It means a lot more money and it's an area in which he is very interested; pizza eating! However, he declines when he realises that he really has everything he wants already; a nice home, a job he loves and enough money to get through college.
This is a fun episode and there is great acting chemistry between Rue McClanahan and Scott Baio in her returning role as Irene Pembroke.