"Yu Yu Hakusho The Movie: Poltergeist Report" centers on Yusuke Urameshi, a Spirit Detective tasked with investigating supernatural disturbances. The story begins with Yusuke and his friends—Kuwabara, Kurama, and Hiei—being drawn into a conflict involving a powerful demon named Sara, who seeks to merge the human and demon worlds. Sara’s goal is to resurrect her lover, Shura, a demon king who was sealed away centuries ago. To achieve this, she requires the energy of a Spirit Detective, making Yusuke her primary target.

Sara’s plan involves using a device called the Orb of Baast, which can open a portal between dimensions. She manipulates a young girl named Sayaka, who possesses psychic abilities, to aid in her scheme. Sayaka’s powers inadvertently attract malevolent spirits, creating chaos in the human world. Yusuke and his team intervene to protect Sayaka and prevent Sara from achieving her goal. The group faces numerous challenges, including battles against Sara’s demonic minions and the growing threat of the merging worlds.

As the conflict escalates, Yusuke and his friends confront Sara in a climactic battle. The fight tests their abilities and teamwork, with Yusuke ultimately relying on his signature Spirit Gun technique to overcome Sara’s overwhelming power. The resolution sees the restoration of balance between the human and demon worlds, with Sayaka freed from Sara’s influence. The film concludes with Yusuke and his companions reflecting on their victory and the enduring bond they share as a team. The narrative emphasizes themes of loyalty, sacrifice, and the struggle to protect the balance between worlds.