"The Sleepers (Part II)": Ursa rampages through the Fortress of Solitude, which is currently occupied by Flamebird and her son, Nightwing. She taunts Flamebird by calling her a coward, claiming that she was responsible
- The killing. That's my favorite part. Zod -- strong, sure, brilliant Zod -- doesn't understand that. He finds victory in planning, in preparation, in the discovery of every little detail. He calls that strategy. He calls that tactics. There's a better word for it. Anticipation. And that's why he is the general... and I am the weapon.
- -- Ursa
Appearing in "The Sleepers (Part II)"
Synopsis for "The Sleepers (Part II)"
Ursa rampages through the Fortress of Solitude, which is currently occupied by Flamebird and her son, Nightwing. She taunts Flamebird by calling her a coward, claiming that she was responsible for the murder of her parents. This puts Flamebird off guard, enabling Ursa the chance to go in for the kill. She slices her with a frangible blade poisoned with Kryptonite. The effects are practically immediate and Flamebird weakens. Ursa pounces on her with a flurry of thrusts, stabbing her repeatedly.
As his partner falls to the floor, Nightwing races over and punches his mother in the jaw. She retaliates with a burst of arctic breath. The two swamp blows and Nightwing surprises her by unleashing a new power - a purple, ultraviolet blast. Ursa begins to cower in fear as Nightwing picks up the Kryptonite blade. He is not a murderer however and drops the knife in order to tend to Flamebird. He picks her up and flies out of the Fortress. Ursa tries to fly after them, but a section of the ceiling collapses, burying her.
In Metropolis, Lois Lane and Jimmy Olsen compare notes on missing Empire Communication CEO David Carter. Lois notices that Jimmy has the word "Hell" written repeatedly across his notebook. He tells her that it's a word puzzle that relates to Project 7734. This reminds Lois of her father. Lois tries to call her sister Lucy, but she doesn't get through.
Moments later, a battered Flamebird and Nightwing arrive outside her window.
- Issue shipped on April 15th, 2009.
- This issue is navigation number 21/2009.
- The events from this issue take place after Superman: World of New Krypton #2.
- Superman does not appear in this issue.
- References are made to General Zod, Steve Lombard, Sam Lane and Lucy Lane in this issue, but none of them make an appearance.
- David Carter is actually a Kryptonian sleeper agent named Tor-An. Flamebird and Nightwing dealt with him last issue.
- This is the first appearance of Lor-Zod's new super-power. The ability to project circular blasts of violet energy is unique to him due to the fact that he was conceived and born in the Phantom Zone. No other Kryptonian possesses this ability.
- Nightwing refers to Lois as "mom" at the end of this issue. During his time spent on Earth, Lor-Zod was renamed Christopher Kent and was adopted by Clark and Lois. This took place during the "Last Son" storyline in alternating issues of Action Comics.
- On an LCD screen, 7734 displayed upside down spells the word Hell.
- The tagline to this issue is "Enter: Ursa". 
- First professional DC Comics artwork for penciler Sidney Teles.
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- Action Comics (Volume 1)
- Action Comics (Volume 2)
- Adventures of Superman (Volume 1)
- Batman/Superman (Volume 1)
- DC Comics Presents (Volume 1)
- Superman (Volume 1)
- Superman (Volume 2)
- Superman (Volume 3)
- Superman (Volume 4)
- Superman (Volume 5)
- Superman/Batman (Volume 1)
- Superman Confidential (Volume 1)
- Superman: The Man of Steel (Volume 1)
- Superman: The Man of Tomorrow (Volume 1)
- Superman/Wonder Woman (Volume 1)
- World's Finest (Volume 1)