"What a Difference a Day makes!": Power Girl starts another busy day as Karen Starr, CEO of Starrware Industries. Nicco Cho, a nanotech researcher, presents her with a pair of earrings with a communicator built-in. He asks her to field
- A child of Krypton. Spirited away from a dying world. Only to find a home on Earth-- and a place in that world. A purpose. An identity. A cousin to the world's greatest protector. A "Supergirl" to his Superman. But this world would be lost to another kind of Crisis. And I would be spirited away again.
Synopsis for "What a Difference a Day makes!"
Power Girl starts another busy day as Karen Starr, CEO of Starrware Industries. Nicco Cho, a nanotech researcher, presents her with a pair of earrings with a communicator built-in. He asks her to field test them in preparation for mass-production. Her executive assistant, Simon Peters, bursts into her office to inform her that the bank will be sending four executive finance officers that afternoon, and he has been unable to get in touch with Starrware's head of finance, Donna Anderson. At the same time, Karen receives a call on her private line from Mr. Terrific, who tells her that Superman has convened a joint meeting of the JLA and JSA.
When Power Girl arrives at the meeting, Superman informs the gathered heroes that Max Lord has returned from the dead, and orders a worldwide manhunt. Power Girl joins several JSA members investigating a lead at the decommissioned Justice League International embassy in Moscow. As they are planning a stealth infiltration of the facility, Booster Gold arrives with guns blazing. Power Girl confronts Booster, angry at him for blowing their cover despite his good intentions.
She flies off to an abandoned munitions factory in northern China to follow up another lead, where she uncovers a dozen reactivated OMACs. While she is battling them, Max Lord is at the JLI embassy in New York City, broadcasting a telepathic message worldwide that causes him to be erased from nearly everyone's memory.
During the global mindwipe, Power Girl recalls her past: escaping from Krypton, arriving on Earth and meeting with her cousin, surviving the Crisis that sent her to another Earth where her place was already occupied by her counterpart, joining several super-teams... but her memories from Maxwell Lord are wiped out.
Power Girl, with no recollection of the day's events, returns to her apartment. She is frantically contacted by Simon, who reminds her of the meeting with the bank executives and informs her that Donna has apparently embezzled all of Starrware Industries funds and disappeared.
Appearing in "What a Difference a Day makes!"
- Nicholas Cho (First appearance)
- Simon Peters
- Booster Gold
- Superman (Flashback and main story)
- Justice Society of America
- Max Lord (Flashback and main story)
- O.M.A.C.s (Flashback and main story)
- Anti-Monitor (Flashback only)
- Justice League of America
- Wonder Woman (Flashback and main story) (Cameo)
- Captain Marvel (Cameo)
- Batman (Bruce Wayne) (Flashback only)
- Power Girl's Cat
- Superman (Earth-Two) (Flashback only)
- Supergirl (Flashback only)
- Earth-Two (Flashback only)
- Krypton (Dies in flashback)
- New Earth (Flashback and main story)
- Cosmic Staff (Flashback only)
- Kryptonian Rocket (Flashback only)
- This issue overlaps with Justice League: Generation Lost #1
- In the flashback images, Supergirl is wearing a suit that neither she nor her non-Kryptonian replacements wore in the New Earth continuity, although it was briefly worn by the original Kara Zor-El.
- The flashback sequence also appears to imply Supergirl arrived on Earth before Power Girl did, and Power Girl met her counterpart before joining the JLI. Still, in the original Post-Crisis continuity, Power Girl turned up prior to any Supergirl, and it would be a while before a Kryptonian Supergirl made it to scene, although Infinite Crisis altered continuity in such a way no Supergirl showed up prior to Superman's cousin.
- Supergirl Recommended Reading
- Action Comics (Volume 1)
- Adventure Comics (Volume 1)
- All-Star Comics (Volume 1)
- Supergirl (Volume 1)
- Superman Family (Volume 1)
- Supergirl (Volume 2)
- Infinity Inc. (Volume 1)
- Power Girl (Volume 1)
- Supergirl (Volume 3)
- Supergirl (Volume 4)
- Supergirl (Volume 5)
- Supergirl and the Legion of Super-Heroes (Volume 1)
- Power Girl (Volume 2)
- Supergirl (Volume 6)
- Worlds' Finest (Volume 1)
- Supergirl (Volume 7)