Supergirl and Flamebird continue their slugfest, with poor Nightwing caught in the middle! Wait, isn't that man standing over there the same Reactron who murdered Supergirl's dad and Flamebird's surrogate father? Get him! Continued in SUPERGIRL #46... And in the new Captain Atom co-feature, the mystery of where (and when) Captain Atom is heats up when someone with a connection to Metropolis arrives on the scene. But are they friend or foe?