Ubiquitous, squeaky-voiced character actor Percy Helton does another guest-star turn on Green Acres. This time, Helton is cast as eccentric inventor Luke Needlinger, who has all of Hooterville ga-ga over his latest invention -- a milk-making machine. Of course, Luke could use a little extra money to finance his miracle machine. Thus it is that the Hootervillians once again put the squeeze on poor Oliver Douglas (Eddie Albert)...who is even poorer as the episode comes to an end. ~ Hal Erickson, Rovi