"She has the thing that I hate most!" -Oolong
Goku decides to fight Oolong, and it's quickly revealed that Oolong is all bark (or all oink?) and no bite. We learn that Oolong is really a pig, and after some shenanigans, Goku manages to capture Oolong and discover where he's kept the village's daughters hidden.
Also in this episode, Son Goku discovers some important things about female anatomy.