"Conan, the Boy in Future," also known as "Future Boy Conan," is a post-apocalyptic adventure anime set in a world devastated by a catastrophic war. The story unfolds in 2008, decades after a global conflict involving magnetic weapons has left the Earth in ruins. Most of the planet's surface is submerged underwater, and the remaining human population struggles to survive in isolated communities.

The protagonist, Conan, is a young boy living on Remnant Island, a small landmass where he was raised by his grandfather after being orphaned. Conan possesses remarkable physical strength and agility, traits that become crucial as the story progresses. His life takes a dramatic turn when a girl named Lana washes ashore. Lana is from Industria, a technologically advanced city-state that has managed to rebuild some semblance of civilization. She is fleeing from the oppressive rule of Industria's leader, Lepka, who seeks to exploit her for her knowledge of a powerful energy source known as the Solar Tower.

Conan and Lana form a bond, and together they embark on a journey to uncover the truth about the world and confront the forces threatening their future. Along the way, they encounter allies such as Jimsy, a resourceful and mischievous boy from High Harbor, a peaceful community striving to rebuild society. The group faces numerous challenges, including Industria's military forces, treacherous environments, and the remnants of the war's destructive technology.

The narrative explores themes of survival, resilience, and the consequences of human ambition. Conan's journey is not only a physical adventure but also a quest for understanding the past and shaping a better future. The characters' interactions and growth are central to the story, as they navigate the complexities of trust, loyalty, and hope in a fractured world.

The series balances action, drama, and moments of introspection, creating a compelling tale of perseverance and the enduring human spirit. Through its exploration of a dystopian future and the struggles of its characters, "Conan, the Boy in Future" presents a timeless narrative that resonates with audiences of all ages.