Red Shield 12. Continued from Action Comics (1938) #882 and continues in Superman (1939) #693.
*Continuing from Action Comics #882, "The Hunt for Reactron" concludes! It's the final showdown between Flamebird, Supergirl and the man who killed their father. And for the Daughters of Zor-El, that means it's payback time. Will Reactron make it out alive? Or is Nightwing the only one who can save them all? *Source: dccomics.com