Action Comics Vol 1 #280 - CGC 2.0

Since his last defeat at the hands of Superman, Brainiac has been trapped in suspended animation in Earth's distant past. However as the age of dinosaurs comes to an end and man rises into predominance, Brainiac is revived when cavemen invent the wheel. The first wheel rolls away and smashes into Brainiac's ship cracking it's dome and releasing the gas that has kept him in suspended animation for millions of years. Revived, Brainiac returns to the present and decides to get revenge against Superman. Seeking an ally, Brainiac beams out a message to criminals that have been imprisoned in the intergalactic prison. Unable to find a suitable protege to help him, Brainiac decides to get revenge against Superman on his own.

In Metropolis, Perry White assigned Clark Kent, Lois Lane, and Jimmy Olsen to go to the African Congo to follow reports of a native uprising in the area. Clark manages to wiggle out of going so that he can accompany his friends as Superman. When plane troubles prevent their timely departure, the three reporters and their plane are carried to the Congo by Superman who gets there in record time. When they arrive they spot an explorer watching a herd of gorillas and find his lack of concern about being in their proximity perplexing.

After the group sets up camp they are attacked by Brainiac who uses a special Green Kryptonite dust solution to weaken Superman. With the Man of Steel immobilized and made vulnerable, Brainiac then uses a shrink ray to shrink Superman, Jimmy, Lois and Perry down to miniature size. Fleeing from Brainiac, the group hides out near a tree when they are approached by a gorilla. Before they can figure out what the gorilla's intentions are, Brainiac traps them all (including the gorilla) in a gigantic glass bottle which is shrunk down to size.

While Brainiac is distracted by the same explorer, who is now making strange noises, the others are surprised to find that the ape has human-like intelligence and climbs the tree inside the bottle and removes it's cork. Then using a rope that was with them when they were shrunk down to size, helps Superman, Lois, Jimmy and Perry out of the battle trap. Getting to Brainiac's ship, they are all restored to their normal size and Superman's powers return to him. Superman and the ape then track down Brainiac. Superman easily knocks out Brainiac and the secret of the ape that acts like man and the man who acts like an ape is revealed: They had just been rescued by Congo Bill.

Switching his mind back to his own body, Congo Bill tells Superman he secretly noticed Brainiac's arrival and decided to help Superman out by switching his mind with the Congorilla. With Brainiac defeated, Superman turns him over to the intergalatic police. In a twist of irony, Brainiac sends out his thoughts to criminals appealing to them to free him, and is refused rescue on the fact that he is a has-been.