Summoned from an ashram in Tibet, Ace finds himself on a perilous journey into the jungles of Africa to find Shikaka, the missing sacred animal of the friendly Wachati tribe. He must accomplish this before the wedding of the Wachati's Princess to the prince of the warrior Wachootoos. If Ace fails, the result will be a vicious tribal war.
Based on the 1930's comic strip, puts the hero up against his arch enemy, Shiwan Khan, who plans to take over the world by holding a city to ransom using an atom bomb. Using his powers of invisibility and "The power to cloud men's minds", the Shadow comes blazing to the city's rescue with explosive results.