Dragon Ball Z: History of Trunks TV Special

In an alternate timeline, Goku has been killed by a deadly heart disease. Six months after his death, two androids emerge from Dr. Gero’s lab and began terrorizing the world, killing the remainder of the Z Warriors in the process, with the exception of Gohan. Now, thirteen years later, Gohan has taken up the battle against the androids and takes Bulma and Vegeta’s son, Trunks, as his pupil, training him to fight the androids by his side. It is up to Trunks to survive the nightmarish hell he was born into, and somehow change history for the better.