A man named Sylvester asks Chloe and her team of superheroes for help but ends up getting attacked and killed. Clark is led to former headquarters of the Justice Society of America where he meets up with Dr. Fate, Hawkman, and Star Girl. Later on, Clark, John Jones, Green Arrow, and Chloe team up to help the JSA stop the killer before he murders someone else in the group. Meanwhile, Lois receives a package from a mysterious agency called Checkmate.


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