Always sweet Penny is entrusted with a owerful amulet by Mr. Arcon, a bald but wise alien. But the amulet causes Penny to run amuk, wreaking havoc on Dr. Smith and the Robt and she sends them to a fake Chinatown where the Statrycons try and destroy Smith, Penny, and Robt using a giant fly creature. Penny unleases all her power and destroys the fakes sets, the fly, and the evil Statrycons in the process.
Wild plot more busy than usual with no-expense sets and some brillant lines of dialogue like Penny ranting at Dr. Smith, "Weve all had enough of you. I shall destroy you once and for all. You will be a meal for the fly! So long Smitty!"
Great stuff and veteran actor Carradine nicely underplays as the bald sage.