"Pico-Pico Boy Turbo" centers on a young boy named Pico, who lives in a futuristic world where advanced technology and robotics are integral to daily life. Pico is an ordinary student with a knack for tinkering with machines, but his life takes a dramatic turn when he discovers a mysterious, high-powered turbo engine hidden in an abandoned laboratory. This engine, known as the Turbo Core, grants him extraordinary abilities, transforming him into the titular Pico-Pico Boy Turbo.

The narrative explores Pico's journey as he learns to harness the Turbo Core's power while navigating the challenges of adolescence. Alongside his friends—a resourceful inventor named Mina and a loyal robot companion, Robo-7—Pico faces off against a series of antagonists, including rogue scientists, rival inventors, and powerful mechanized foes. Each encounter tests his ingenuity, courage, and growing understanding of the Turbo Core's capabilities.

As the story progresses, Pico uncovers the origins of the Turbo Core, which is tied to a larger conspiracy involving a shadowy organization seeking to exploit its power for global domination. The series balances action-packed sequences with moments of character development, delving into themes of friendship, responsibility, and the ethical implications of advanced technology. Pico's growth as a hero is paralleled by his relationships with Mina and Robo-7, who provide both emotional support and technical expertise.

The plot is structured around episodic battles and overarching story arcs, with each arc revealing more about the Turbo Core's history and the true motives of the antagonists. The series maintains a steady pace, blending humor, suspense, and heartfelt moments to create a dynamic and engaging narrative. By the conclusion, Pico emerges as a symbol of hope and resilience, having not only mastered the Turbo Core's power but also forged lasting bonds with those around him.