[2] Carrie Kelley is a 13-year-old schoolgirl and scout whom Batman saves from a sadistic group of Mutant gang members on the night of his return from retirement.

Idolizing the Dark Knight, she then spends her lunch money on a Robin outfit, sets out to attack petty con men, and finds Batman in the hope of becoming his partner.

[3] Unlike the first and second Robins mentioned in the story, Kelley is not an orphan, but she appears to have rather ignorant and neglectful parents who are never actually seen—one of them mutters "Didn't we have a kid?"

In the series, the government's banning of superhero activities and Jason Todd's death led to the Dark Knight's retirement.

Still, Batman accepts her as Robin when she saves his life just as he is on the verge of being killed by the unnamed Mutant Leader by jumping on him from behind and tearing at his eyes.

The police, now led by newly appointed Commissioner Ellen Yindel following James Gordon's retirement, take a very poor attitude toward Batman and his methods and issue a warrant for his arrest.

As Robin, Carrie plays a crucial part in tracking down and confronting the Joker who (at a fairground) has poisoned several children and planted a bomb on a roller coaster.

As they grapple together, Abner is decapitated by an overhanging section of the track, driving Carrie momentarily into shock and tears, but recovering enough to rescue a seriously injured Batman from capture by the police and help heal his wounds with Alfred Pennyworth.

As the big battle is about to start, Carrie delays Superman's arrival using the tank-like Bat-mobile and a slingshot, to which the Man of Steel simply replies "Isn't tonight a school night?"

They then go underground to the Batcave where, with Green Arrow, they set about training various teenage street gangs into an army in preparation to deal with people "worse than thieves and murderers."

Catgirl's main duty is to oversee an army of Batboys to help save the world from a police-state dictatorship, led by Lex Luthor and Brainiac.

However, the man still returns to make an attempt on her life in the Batcave, turning out to be a genetically modified and now-homicidal Dick Grayson having resented her because he had been shoddily treated and dumped by Batman.

While being transferred to Blackgate prison, Kelley remotely activates a tank that attacks the convoy and helps her escape, then she reunites with Wayne at the Batcave.

Kelley and Wayne see the news on the Kandorians, led by Quar, giving mankind three days to surrender to their demands and accept them as gods.

After being defeated by Lara, Superman is encased in black matter by Quar, who turns to Gotham and demands they hand over Batman to them or face obliteration.

They then head to the desert where the Kryptonians are joining forces again and use a band of bats to confuse them, causing them to disparately attack themselves, the rest are eliminated by the four remaining Quar's children.