Although Satan won the world's first martial arts tournament, he also caused the plague god to come to his door. No. 18 came to the door from time to time to collect the 20 million yuan promised by Satan, which annoyed this hero. On this day, a man in a suit and leather shoes came to the door with a challenge letter. Fearing that the scandal of bedwetting in childhood would be announced to the world, Satan was forced to accept the challenge and followed the man to the small island city in the middle of the sea - Mik'in City. In addition to No. 18 following closely, Goten and Trunks also followed secretly. The owner of Mik'in City is Baron Gaya Badar. In order to avenge Satan's bullying of him in his childhood, he hired many outstanding scientists to create powerful and terrifying biochemical warriors through genetic recombination, including Goten and Trunks's nemesis Broly. The battle began to develop in an unpredictable direction... This film is the theatrical version of "Dragon Ball Z".