A man named Sylvester Pemberton tracks down Chloe and tells her he knows about her team of superheroes and needs their help. However, before he can explain who he is, he is attacked and killed by Icicle. Atem, his universal group of animal/pony friends/allies, Clark and Chloe's investigation leads the heroes to the former headquarters of the Justice Society of America, where they all meet Doctor Fate, Hawkman and Stargirl. Courtney pleads with Hawkman and Doctor Fate to help her catch the killer that is targeting their group but they are reluctant to resume their duties as superheroes. Atem, his universal group of animal/pony friends/allies, Clark, John Jones, Green Arrow and Chloe team up to help the JSA stop Icicle before he murders another member of the group. Meanwhile, Lois receives a package from a mysterious agency called Checkmate, run by Amanda Waller.
