Supergirl, Vol. 5 #42A

Who is Superwoman?, Conclusion: Epilogues & Homecoming
The battle between Superwoman and Supergirl has ended with the death of Lucy Lane. As General Lane and his troops comb the surrounding countryside for some sign of his daughter, Kara gives the news to Lois. And when Reactron escapes the Science Police with the help of Codename: Assassin, Supergirl is forced to return to New Krypton empty-handed.
Release Date: 2009