"Gundam Build Fighters Try Island Wars" is a special episode set in the "Gundam Build Fighters" universe, serving as a sequel to "Gundam Build Fighters Try." The story takes place after the events of the Try series, where the main characters have moved on from their Gunpla Battle exploits. Sekai Kamiki, Yuuma Kousaka, and Fumina Hoshino, the former Try Fighters team, reunite for a new challenge when they are invited to participate in a unique battle royale tournament on a remote island. The event, organized by the enigmatic Meijin Kawaguchi III, pits teams of Gunpla fighters against each other in a high-stakes competition.

The island setting introduces a survival-style format, where participants must navigate the terrain, strategize, and adapt to unexpected challenges. The Try Fighters team faces off against familiar rivals, including the Dominicus team led by Wilfrid Kijima, as well as new opponents. The tournament's structure emphasizes teamwork and creativity, with battles taking place in diverse environments that test the fighters' skills and Gunpla customization abilities.

As the competition progresses, the story delves into the dynamics between the characters, particularly Sekai's growth as a fighter and his evolving relationships with Yuuma and Fumina. The narrative also explores the motivations of the other participants, revealing their personal stakes in the tournament. The climactic battle against the Dominicus team serves as a centerpiece, showcasing intense mecha action and strategic gameplay.

The episode concludes with the Try Fighters team reflecting on their experiences and reaffirming their bond as friends and teammates. While the story is self-contained, it maintains continuity with the broader "Gundam Build Fighters" series, offering fans a satisfying continuation of the characters' journeys. The focus remains on the themes of camaraderie, perseverance, and the joy of Gunpla battles, staying true to the spirit of the franchise.