Using his micro-wave reducer, mad Dr. Hiram Gulliver shrinks all adults- including the Superfriends- to two inches tall to help the population problem (by saving resources)... and also to rule over them (he will remain full-sized to watch over the mini population of the world). The Green Arrow joins the Superfriends to stop him and to return things to normal. Only with Wendy and Marvin's intervention that Dr. Gulliver decides to use more reasonable means.