World's Finest Vol. 1 (1941-1986) #199

Plot

Again the Anachronids interrupt the race, and Superman and The Flash find themselves back in the hands of the Phantom Zone criminals. The villains reveal that they are responsible for the creation of the Anachronids, which are intended to disrupt time and destroy the barrier between the Phantom Zone and the rest of the universe. But Superman and The Flash stop their plans and head home.