We all screw up. We all do dumb things. Unintentionally dumb things. Embarrassing dumb things. Unintentional, embarrassing and dumb things that are--not exactly--our fault. But when you're a superhero, the magnitude of the unintentional embarrassing and dumb things, well... They can really bury the needle in the red on the "screw up" scale. 
Power Girl (Volume 2) #21 is an issue of the series Power Girl (Volume 2) with a cover date of April, 2011. It was published on February 23, 2011.
Synopsis for "Old Friends"
Power Girl has just battled the JLI, having been conditioned into believing they were Superman, Supergirl and the JLA gone bad. The JLI has successfully broken her mind-control and accept her apologies, but they send her away anyway.
Power Girl now remembers Maxwell Lord and heads towards the Batcave to try and get Dick Grayson remember him. However, every time she is getting through Dick, Lord's mental blocks make him forget the whole conversation. When she sees Dick still believes Ted Kord killed himself, she decides to force him to face the truth, and heads out.
Meanwhile, all Starrware Industries' assets and equipment have been seized and bought by Ophelia Day, C.E.O. or rival firm Day Work Industries.
In the meantime, Kara remembers Ted Kord. She never took him seriously, even though he was a real hero. He was the first to discover hints from the O.M.A.C. Project but she didn't listen to him. And he got murdered.
Kara unearths Ted's coffin and demands Dick examines the corpse and determines the cause of death. Dick doesn't want to, but Bruce Wayne turns up. He remembers Max Lord, and upon examining the gunshot wound forces Dick to get past his mind-block.
As Dick Grayson gets to contact their fellow heroes, Power Girl and Batman are going to join up the JLI and stop Max Lord.
Appearing in "Old Friends"
Featured Characters:
- Power Girl (Flashback and main story)
Supporting Characters:
- Batman (Bruce Wayne)
- Batman (Dick Grayson) (Flashback and main story)
- Blue Beetle (Appears only as a corpse) (Flashback and main story)
- Justice League International
- Booster Gold
- Captain Atom (Flashback and main story)
- Fire
- Ice
- Rocket Red
- Nicholas Cho (Flashback and main story)
- Simon Peters
Antagonists:
- Maxwell Lord (Flashback only)
Other Characters:
- Black Canary (Flashback only)
- Flash (Wally West) (Flashback only)
- Green Arrow (Flashback only)
- Ophelia Day (First appearance)
- Oracle (Mentioned only)
- Skeets
- Speedy (Mia Dearden) (Flashback only)
- Starfire (Flashback only)
- Wildcat (Ted Grant) (Flashback only)
- Wonder Girl (Cassandra Sandsmark) (Flashback only)
- Blue Beeetle (Jaime Reyes) (On a TV or computer screen)
- Magog (Mentioned only)
- JLA (Mentioned only)
Locations:
Items:
Vehicles:
Notes
- Stories continues from Justice League: Generation Lost #18 and is concluded in Justice League: Generation Lost #22.
- Power Girl mentions several previous events: OMAC Project, Infinite Crisis and Final Crisis.