Definition: In this task, five ordered key facts are given. All the given facts are expressed in natural language. Your job is to generate a story 100 to 1000 words long, that includes all the facts given as input in their order of appearance while expanding upon them to produce a broader, yet coherent, narrative.
Input: Fact1: film series is complicated serial with more twists than maze, Fact2: complicated serial with more twists than maze centers around U.S. Air Force captain and quest for missing microfilm, Fact3: Captain Roger Drum shoots down enemy plane on way to Africa with secret microfilm, Fact4: subversives are searching for new metal more radioactive than uranium, Fact5: Thunda or Drum reunites Rock People and Cave Men

The film series is a complicated serial with more twists than a maze that basically centers around a U.S. Air Force captain and his quest for missing microfilm that contains vital information. The heroic Buster Crabbe plays Captain Roger Drum, who shoots down an enemy plane on its way to Africa with the secret microfilm. Intent on revealing the subversive group that the message was for, Drum assumes the pilots identity and flies to Africa himself and crashes in the jungle. He is rescued by the pacific Rock People, led by Princess Pha Gloria Dea, and is renamed Thunda, King of the Congo, after he rings a temple gong in alarm. With the subversives believing Thunda is their missing pilot and under constant attack by another tribe called the Cave Men, our hero plots to bring down the subversives who are searching for a new metal more radioactive than uranium. At the end, Thunda or Drum clears the jungle of villains and reunites the Rock People and Cave Men.