Killer Ape

Jungle Jim notices many jungle animals behaving unnaturally and decides to send a sample group to a laboratory for testing. He surmises something sinister is at work and keeps a wary eye on the forest. The plot thus gets its first hint of a dangerous conspiracy.

It is revealed that Doctor Andrews is behind the strange animal behavior. He plans to formulate a deadly drug that would kill any creature injected with it within seconds. His motives set the stakes for Jungle Jim’s future encounters.

Jungle Jim spots Andrews near the Canyon of the Man Ape and warns him to leave quickly. He mentions a rumor of a dangerous half-man, half-ape creature in the canyon. Jim's warning foreshadows the coming threat.

Andrews ignores the warning, and the Killer Ape destroys Andrews' jungle laboratory. The destruction signals the monster's strength and the predictable escalation of the menace.

Jungle Jim meets Mahura, leader of the Wazuli clan, and warns him about the Killer Ape. Mahura is skeptical and wants to see the beast for himself. The meeting establishes Jim's alliances and the tribal stakes involved.

Mahura ventures into the canyon to witness the Killer Ape, against Jim’s advice. He encounters the enraged monster and is knocked out when Jim comes to aid but is too late to save him. The Killer Ape kills Mahura, escalating the danger.

After Mahura's death, Shari and Ramada accuse Jim of murder, sparking a heated confrontation. Jim denies the charges, but the tension drives a rift between him and the tribe.

The Killer Ape reappears and tries to kill Shari, but Jim intervenes and scares the beast away. This moment rekindles Jim’s bond with Shari and raises the stakes for their group.

Ramada discovers Andrews’ plan to harm jungle animals and resolves to stop him. Andrews orders the kidnapping of Ramada and a tribal Elder, forcing Jungle Jim to join a rescue mission.

While attempting to rescue Ramada and the Elder, Jungle Jim is captured by Andrews' men. The operation intensifies as the heroes are seized and the situation grows desperate.

The Killer Ape bags Shari again and returns to the canyon with her, adding to the group of captives. Jim's allies — the apes led by his pet chimp Tamba — band together for a rescue.

Tamba and a troop of apes storm Andrews' retreat, freeing the captured and overwhelming the henchmen. The rescue marks a turning point in the conflict.

The Killer Ape massacres Andrews' henchmen and allows the doctor to be mauled by a panther. The monster’s motive shifts when it locks eyes with Shari, revealing a personal, protective motive.

Jim burns the Killer Ape alive to halt its violent rampage and save Shari. The creature is defeated, and the danger to the jungle ends.

In the aftermath, Jungle Jim is awarded a medal for ridding the jungle of the Killer Ape. The community acknowledges his courage and returns to peace.