The anime begins with Goku, Gohan, and Goten enjoying a peaceful time on Earth. They are farming and training, relishing the tranquil days. However, their peaceful existence is abruptly disrupted when a spaceship crashes near their location. They investigate the crash and discover a young boy named Tarble, who is Vegeta’s younger brother. Tarble reveals that he needs their help to defeat a powerful enemy who has been terrorizing his planet.
While they prepare to assist Tarble, a familiar and ominous energy signature is felt by Goku and the others. It turns out that the source of this energy is Broly, the Legendary Super Saiyan who was believed to have perished in the previous encounter. Broly, fueled by his intense hatred for Goku, has returned, seeking revenge.
Broly’s arrival sparks chaos and destruction as he relentlessly attacks Goku and his friends. The Z Fighters are initially overwhelmed by Broly’s incredible power, but they refuse to back down. As they engage in battle, Goten’s power awakens, and he transforms into a Super Saiyan, demonstrating his potential.
Meanwhile, Gohan discovers a wounded dinosaur in the forest and tries to heal it. As Gohan forms a bond with the dinosaur, he realizes that it is the last of its kind and feels a sense of responsibility to protect it from Broly’s rampage. This subplot adds an emotional element to the movie as Gohan fights to save the dinosaur and his newfound friend.
