Trunks and Gohan decided to fight the androids but again the androids won. Gohan lost an arm in the fight. Trunks tried to transform into a Super Saiyan but he failed. Trunks tried to stop Gohan from fighting the androids alone but was knocked out by his master to keep him safe. Trunks woke up and learned that that Gohan had went to fight the androids alone. When Trunks got to the scene of the fight. he found Gohan was dead. This was what was needed for him to change into a Super Saiyan. 