Captain America (1968 series) #123

At the hidden headquarters of Suprema, mysterious mistress of menace, the lady mastermind tells her assembled gang that the time has come to strike. When a minion questions her plans to become Queen of Crime, she silences him with a karate chop to the head and continues. She reveals her plans to seize control of all criminal rackets within 24 hours by using the power of witchcraft! She begins by heading for the Long Island club of Aces Wilde in her Wolverine Jet; there, by her mysterious powers, she persuades Wilde to sign over control of his casino to her. For the rest of the day, Suprema and her gang move from one crook to another, taking over their operations solely through the beauteous witch’s influence….

Meanwhile at SHIELD HQ Captain America gives a judo demonstration to trainees using Nick Fury as a stooge, then goes back to brooding over Sharon Carter, blissfully unaware of what is about to take place….

Suprema, using the sensitive electro-scanner in her Wolverine Jet, is on the lookout for a SHIELD agent; she finds Dum-Dum Dugan by tracking his special mini-badge. She captures Dugan’s mind and persuades him to lead her and her men to SHIELD’s weaponry range just outside the city. There she announces that she is the new Director of SHIELD, bringing Nick Fury and the assembled agents under her spell. Cap is the only one unaffected and he barely manages to fight his way past the enemy gang to safety, hijacking their vehicle. Stopping off at the Daily Bugle and Stark Industries to do some research, Cap finds the means of defeating his foes. Back at SHIELD HQ, Fury and his men suddenly snap out of the spell and quickly overpower Suprema’s gang. Knowing that Suprema and her partner Scarbo were former sideshow hypnotists, Cap had generated an electrical signal to short-circuit the device which amplified her powers. The defeated villainess offers to make Cap her partner, promising him power…but Cap will have none of it and he walks away….