"The Death-Rattle of the 12-Hour Man!" plus reprints:
"The Duel of the Super-Heroes!" originally printed in Green Lantern(1960) #13.
"The Images of Doom!" originally printed in Flash Comics(1939) #94.
"The 9th Wonder of the World!" originally printed in Adventure Comics(1938) #121.
"Vengeance Via Television!" originaly printed in Flash(1959) #124.