Showcase: Tharka the Superwoman: 1969: Invaders from Earth
by Dan Swanson 
Original film footage from Tharka the Superwoman’s famous trip to Earth from her home planet of Zor years earlier was stolen — but why? Tharka learns the reason two years later, when her arch-nemesis Doctor Computeer declares herself Empress of Zor and forces Tharka to battle two super-powered foes from Earth — Captain Challenge and Muscleman! Can Tharka outwit her enemy and save her world before it’s too late?