But the Druidon's war campaign was halted by the meteor that brought the age of the dinosaurs to an end, forcing them to flee into space.

[6] In the film's storyline, the Ryusoulgers end up in the Mesozoic Era where they learn the truth of their ancestors' warlike nature as they are forced to fight them and Gaisoulg to save the future.

[citation needed] This is the first Reiwa-era Super Sentai movie, released two months after the 2019 Japanese imperial transition.

[9][10] The film is set between episodes 32 and 33 of the series, with guest actress Kanon Miyahara portraying a character called Maiko.

[12] Kishiryu Sentai Ryusoulger: The Legacy of the Master's Soul (騎士竜戦隊リュウソウジャー THE LEGACY OF The Master's Soul, Kishiryū Sentai Ryūsōjā Za Regashī Obu Za Masutāzu Sōru) is a three-episode web-exclusive series released on Toei Tokusatsu Fan Club on October 17, 2021.

The special serves as a prequel to the series with Masaya Kikawada, Jouji Shibue and Miyuu Sawai reprising their roles as Masters Red, Blue, and Pink respectively.