For Supergirl, it's not easy growing up the most powerful teenager in the world. But as she tries desperately to carve out a place for herself on Earth, the Teen of Steel struggles with the mysteries of her past on Krypton and her potential as one of Earth's mightiest heroes. Promising a dying boy to use her spectacular powers for the practical purpose of curing his terminal illness, Supergirl upsets the universe's rules of life and death in the service of her impossible quest and may have to face off with Superman and Batman to accomplish it. Should heroes of unfathomable power attempt to change humanity? Or are their offers of help more harmful than good?

In one of their first adventures together, Earth 2's Supergirl and Robin team up to face their world's Wonder Woman.

Written by award-winning authors Sterling Gates and Greg Rucka, Supergirl Vol. 5: The Hunt for Reactron sees Kara Zor-El finally coming face-to-face with the man who murdered her father: Reactron! It's the end of the road! The violent escalation of Supergirl and Flamebird's blood feud! Kara's first encounter with Nightwing! And the conclusion of Supergirl's hunt for the man who killed her father, Zor-El...Reactron! Everything comes to head in this classic collection of Rucka and Gates' epic run in Supergirl Vol. 5: The Hunt for Reactron. Collects Action Comics #881-882, Supergirl #44-50, Supergirl Annual #1 and pages from Superman: Secret Files 2009.

After escaping the destruction of her home planet, Kara Zor-El is taken in by the loving Danvers family, who taught her to keep her incredible powers a secret, but when her powers are the only thing that can save the people and the city she loves, she takes to the skies above National City.

From writer Peter David (THE INCREDIBLE HULK, X-FACTOR) and artist Gary Frank (ACTION COMICS, JUSTICE LEAGUE) comes the start of the classic series that created a revolutionary new identity for the Maid of Might! WHO IS LINDA DANVERS? To her parents, Linda is a former good girl who now dabbles on the wrong side of the law. To her friends, she’s a struggling artist and the ultimate Supergirl fan. To her boyfriend, Buzz, she’s an eager accomplice as they try to harness dark forces more powerful than either of them can control. And after Buzz tries to use her to summon a demon, Linda Danvers is...dead? To save Linda’s life, Matrix, a protoplasmic version of Supergirl, uses her powers to fuse the two of them together. Now, sharing memories, sharing superpowers, the entity formerly known as Linda Danvers is something else entirely. Is Linda still a human with the same damaged soul? Or has Supergirl done the unthinkable and stolen a new life for herself? There are no easy answers, but Linda knows she must use her new powers to atone for her past sins. Because whatever else she may be, for now, she’s... SUPERGIRL! SUPERGIRL BOOK ONE collects SUPERGIRL #1-9, SUPERGIRL ANNUAL #1, SUPERGIRL PLUS #1 and a story from SHOWCASE ’96 #8.

Kara Zor-El has seen some epic adventures over the years, but finds her life without meaning or purpose. Here she is, a young woman who saw her planet destroyed and was sent to Earth to protect a baby cousin who ended up not needing her. What was it all for? Wherever she goes, people only see her through the lens of Superman’s fame. Just when Supergirl thinks she’s had enough, everything changes. An alien girl seeks her out for a vicious mission. Her world has been destroyed, and the bad guys responsible are still out there. She wants revenge, and if Supergirl doesn’t help her, she’ll do it herself, whatever the cost. Now a Kryptonian, a dog, and an angry, heartbroken child head out into space on a journey that will shake them to their very core.