Future Gohan is from an alternate timeline in Dragon Ball Z. 1 / 7
In his future, the Androids took over after Goku and the other heroes died. 2 / 7
He mentored Future Trunks, one of the series' most popular characters. 3 / 7
Gohan trained Trunks and taught him how to go Super Saiyan. 4 / 7
However, Gohan lost an arm and was scarred saving Trunks from the Androids. 5 / 7
In another battle, Gohan was killed by the Androids before Trunks traveled to the present. 6 / 7
Future Trunks was able to restore Gohan's soul in Dragon Ball Super. 7 / 7