Power Girl (Comic Book)

Power Girl is an American comic book series featuring the eponymous character, a superheroine from the planet Krypton. Created in 1976 by Gerry Conway, Ric Estrada, and Wally Wood, Power Girl first received her own title in 1988. A second volume was published from 2009 to 2011. In addition, the character has appeared in many other DC Comics titles.

Beasts of Burden (Volume 2, Issue 20)
Power Girl investigates the mysterious Project Cadmus and discovers an unencrypted server (which she uploads) and a number of Profesor Ito's Genetically-Engineered Life Forms (GELFs). Although she manages to get the upper hand with the help of a cloned Krypto, Maxwell Lord arrives and places her under mind control. He orders her to take out Captain Atom and Justice League International, and she heads off to do so.

(The story continues in Justice League: Generation Lost #18; Power Girl #21 picks up with a very embarrassed and no-longer-mind-controlled Power Girl sheepishly apologizing for her actions)