An android commandeers the Enterprise, taking it to a planet inhabited by androids—which is also where the devious Harry Mudd (Roger C. Carmel) now resides. Prohibited from leaving the planet by the androids unless he finds them new subjects to observe, Mudd intends Kirk and his crew to replace him. Unfortunately for Mudd, the androids decide to still prohibit him from leaving, finally forcing Kirk and Mudd to team up in an attempt to escape.
"I, Mudd" is a lighthearted comic romp featuring the lively scoundrel in a far more entertaining episode than "Mudd's Women" from season one. Mudd and Kirk's verbal jousts are right on target; Mudd's handy-to-muzzle "wife android" is a funny gag; and an ending where Kirk & Co. engage in ultra-bizarro behavior to overload the androids with illogical slapstick and circular reasoning is amusing through its desire to go for broke. Goofy, yes; believable, not really—but I laughed, and that's the only test probably required in this case.