"New Dominion Tank Police" is a six-episode OVA series that serves as a sequel to the original "Dominion Tank Police." Set in a futuristic, crime-ridden city, the story revolves around the Tank Police Division, a specialized unit that uses miniature tanks to combat escalating criminal activity. The series blends action, comedy, and science fiction, exploring themes of law enforcement, technological advancement, and societal decay.

The protagonist, Leona Ozaki, is a passionate and reckless officer in the Tank Police Division. Known for her fiery personality and obsession with tanks, Leona often clashes with her superiors but remains dedicated to her job. Her partner, Al, is a sentient, tank-driving AI who shares her enthusiasm for law enforcement. Together, they form a dynamic duo, tackling criminals with a mix of brute force and unconventional tactics.

The central conflict arises when a mysterious criminal organization begins wreaking havoc in the city. This group, led by the enigmatic and charismatic Buaku, employs advanced technology and bio-engineered creatures to carry out their plans. Buaku, a recurring antagonist from the original series, is a genetically modified humanoid with a penchant for chaos and a personal vendetta against the Tank Police. His schemes often involve elaborate heists, sabotage, and confrontations with Leona and her team.

As the series progresses, the Tank Police face increasingly dangerous threats, including rogue AI, corporate espionage, and internal corruption within the police force. The narrative delves into the ethical implications of using advanced technology in law enforcement, as well as the blurred lines between justice and vigilantism. Leona's determination to uphold the law is tested as she navigates these challenges, often relying on her instincts and the support of her comrades.

Supporting characters include Annapuma and Unipuma, two feline-like bio-engineered assistants who work with Buaku. Their quirky personalities and loyalty to Buaku add a layer of humor and unpredictability to the story. Additionally, the series features various members of the Tank Police Division, each contributing to the team's efforts in unique ways.

The plot is driven by a series of episodic missions, interspersed with overarching storylines that build toward a climactic confrontation between the Tank Police and Buaku's organization. The action sequences are fast-paced and visually engaging, showcasing the creative use of tanks and futuristic weaponry. Despite its comedic undertones, the series does not shy away from darker themes, such as the consequences of unchecked technological advancement and the moral ambiguity of law enforcement in a dystopian society.

"New Dominion Tank Police" maintains a balance between lighthearted humor and serious storytelling, making it an engaging continuation of the franchise. The series expands on the world-building of its predecessor while introducing new characters and challenges, offering a fresh perspective on the ongoing battle between order and chaos in a technologically advanced yet deeply flawed society.