Operation Ruthless: Helga finds out about Arnold's love for Ruth and his plan is to meet her at the Annual Cheese Fair, and Helga makes sure Ruth will never meet him, in a plan known as "Operation Ruthless". But her plan backfires as this only makes Arnold love Ruth more than ever. The Vacant Lot: Arnold and his friends clean up a dirty lot to play baseball on, but when the adults find the lot, they take it over and use it for their own reasons.