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.
Masako, a five-year-old girl living, gets a scratch on her finger. After that, she suffered horrible spasms. The doctor checks on her and arrives at the conclusion that she has tetanus. Her parents have to bear the sufferings of their child. The once peaceful family has changed completely.
Momojiro and Jonathan go to Kochi on a ferry. On the ferry a singer called Yuka dropped her sheet music into the ocean. Momojiro helps her by diving in to collect the sheets for her and ends up falling in love.