Synopsis

Lex Luthor and Joker team up, creating nearly indestructible robots. Superman and Batman must track them down and deduce their master plan.

Written By:

Henry Boltinoff Edmond Hamilton H.T. Elmo

Pencils:

George Papp Henry Boltinoff Fred Ray Dick Sprang H.T. Elmo

Inks:

George Papp Henry Boltinoff Fred Ray Stan Kaye H.T. Elmo

Cover By:

Curt Swan Stan Kaye