"Bats and Terry" is a science fiction anime series set in a dystopian future where humanity is divided between those who live in heavily fortified cities and those who survive in the lawless wastelands outside. The story centers on two protagonists: Bats, a rogue mercenary with a mysterious past, and Terry, a young inventor with unparalleled technical skills. Their paths cross when Terry's latest invention, a device capable of generating unlimited energy, attracts the attention of a powerful corporate syndicate seeking to monopolize the technology.

Bats, initially hired by the syndicate to retrieve the device, has a change of heart after witnessing Terry's determination to use the invention for the greater good. Together, they form an uneasy alliance to protect the device from falling into the wrong hands. As they navigate the treacherous wastelands, they encounter various factions, including rebel groups, rogue AI, and remnants of the old world's military. Each encounter reveals more about the world's history and the systemic corruption that led to its current state.

The narrative explores themes of survival, morality, and the consequences of unchecked technological advancement. Bats' pragmatic, survivalist mindset often clashes with Terry's idealistic vision, creating a dynamic partnership that evolves over the course of the series. Their journey is punctuated by intense action sequences, strategic battles, and moments of introspection as they grapple with their roles in shaping the future.

Key supporting characters include Lira, a former syndicate operative with her own agenda, and Dr. Kael, a scientist who holds critical knowledge about the device's origins. The series builds toward a climactic confrontation with the syndicate, culminating in a resolution that leaves the fate of the world—and the device—uncertain, setting the stage for potential future developments.