Dragon Ball Z: The History of Trunks (1993)
Thirteen years have passed since the Androids unleashed chaos, leaving Son Gohan as humanity's last hope. Taking Bulma's son, Trunks, under his wing, Gohan trains him in the art of combat. The bond between mentor and student grows, but tragedy strikes when Gohan sacrifices himself to protect Trunks. With his mentor gone, Trunks faces the daunting task of reversing the bleak fate of his world and finding a way to confront the Androids, hoping to reshape a future filled with despair into one of hope and resilience.
