Ming's estranged daughter, Aura, crash lands her ship on Monitor and informs the Defenders of her father's latest scheme to enslave the population of earth with his Mind Neutralizer. Flash, an old friend of Aura's who once saved her and her husband, Barin, from destruction at the hands of Ming, immediately sets out for Grand Junction with Aura, Rick, Jedda and L.J. Upon arriving they discover that all the city's officials are already under Ming's hypnosis and that Aura's motivation is revenge- pure and simple. As Mandrake, the Phantom and Lothar rush to the rescue, the Defenders escape and convince Aura that she is an unwitting dupe in Ming's evil scheme. Briefly captured but now free, Mandrake and Lothar, with the Phantom set to work on reversing the polarity of Ming's neutralizer before he hypnotizes the entire world, while Flash, Rick, L.J., Jedda and Aura fly to an alien planet to rescue Barin. Seconds before Ming's scheme enslaves the world Dynak X completes the reversal, and all those previously under Ming's spell are once again free-thinkers.