A Sun Vulcan movie was released on July 18, 1981 at the Toei Manga Festival. It takes place some time after episode 23. In it Black Magma decides to separate Hiba from his teammates while plotting to blow up Tokyo with hidden bombs.

The peaceful passage of daily life in the Pacific Ocean is upended in a flash on March 1, 1954, with the first American nuclear test at Bikini Atoll. The far-reaching fallout forever changes the lives of the ocean’s cheerful inhabitants.