Bounty hunter Cobra saves Professor Utopia Moore from the Pirate Guild while trying to steal a diamond. Intrigued by their interest in her research, he plans to intercept Moore's team on Mars.

Professor Toporo reveals that the mysterious figures assisting him are actually Pirate Guild operatives, leading to Cobra's realization and fatal confrontation with them.

Secret opens the Golden Gate, revealing a control system hidden beneath a winged lion, but when Cobra triggers a gravity barrier and falls through a trapdoor, he ends up in an underground city suffering from amnesia.

Cobra, paralyzed by a drug from a woman who bit him, fears he will die without knowing his identity, but ultimately breaks free and defeats Garcia with a single blow, regaining his memories and mission. Accompanied by Bonny, he reaches the planet’s propulsion power plant to rescue Secret, who has been trapped under a gravity barrier.

Treasure hunter Johnny retrieves a jewel ring but is killed in an explosion, prompting Cobra to investigate his disappearance at the cursed Baron Island.

After a passenger plane carrying 20 tons of gold bars is mysteriously blown up mid-air and crashes into a non-existent mountain, eight strangers gather in a remote cabin during a snowstorm, each with their own motives to find the gold.

Cobra saves the group from a falling icy rock and an avalanche, but their numbers dwindle as Bucky falls to his death and Daisy freezes from a sabotaged tent.

Cobra stops at an entertainment space station and reunites with Bonny, who now owns a bar, where he meets Elizabeth Tucker, who seeks his help to free Secret from prison.

Cobra enters a car race against reigning champion Pamela Lee, winning but seemingly crashing to his death...

In the town of Gizla, a group of characters receives invitations to reclaim Shiva Castle, where the royal family was slaughtered by the Chaos Army two decades prior.

The Queen of Spades infiltrates Zaru's mansion while the rest of the team uses alternative routes to enter. Cobra, the Ace, is forced into a fight after killing a prisoner.

Using Zaru’s submarine, the group travels to Shiva Castle, where Cobra has been before, arriving in the town of Saldora and Ellis' birthplace, Fairy Forest. They aim to access an underground waterway to the castle but discover that the temple is closed.

King recalls his past as the ruler of Shiva, mourning the death of Queen Romila during a Chaos armada attack led by a figure with a left arm gun, suspected to be Cobra.