Superman and Batman try to outsmart their Bizarro duplicates, while Tommy Tomorrow and his "buddy" Brent ignore every rational protocol while exploring a planetoid!
An 80-Page Giant all about Superman's Fortress of Solitude! Plus - the eternal sunshine of Jimmy Olsen's freckled mind! Superman's army of misogynistic robots!...
The Justice League has double trouble when Felix Faust starts multiplying just like a renegade Carggite! Luckily it's the sixties when everyone knows that...