Supergirl #21 (Vol. 4)

A COUNTDOWN tie-in! For Supergirl, the scars of AMAZONS ATTACK remain. Now she's unable to come to terms with her guilt, dreading crossing paths with Superman, and facing off against a foe straight from the pages of COUNTDOWN: the Karate Kid!

Image: Supergirl #21 (Vol. 4) - DC Comics

Supergirl #21 (Vol. 4)