Trunks, Son of Bulma and Vegeta. There are essentially two different Trunks, one coming from a grim and chaotic future and one that was born in to a comfortable home in a comparatively more peaceful time. Teenage Trunks from the future (mirai), age 17, arrives just when Freezer and King Cold have come to earth in order to wreak revenge on Goku. However, the connivance of these sub-temperature villains is foiled by Trunks, who hacks Freezer to pieces and finishes off his dad too. Minutes later, Goku's ship from Yardalat Planet touches down, and Trunks has a little pow-wow with the Saiyajin hero. Trunks convinces Goku of a disastrous future when Goku has died of heart disease and evil Androids are running amuck. He informs Goku of where the Androids will come and, fortunately for Goku, gives him medicine from the future that will remedy the presently incurable disease. Trunks later comes back to check up on Goku, only to discover that he (Trunks) has inadvertently changed the past (as he knew it). New androids appear (#19, #20, and #16) and the ones he is worried about, #17 and #18, turn out to be harmless. However, a great menace appears, a biologically-created creature named Cell. (The story gets somewhat complicated here.) Trunks stays on to battle Cell, and returns to the future satisfied, after Cell is defeated by Gohan. Back to the future (sorry), Trunks, now much stronger after training with Goku in the past, easily defeats the evil androids and future Cell, restoring peace in his time. Trunks from the future is pensive, battle-hardened, and weary of the destruction and violence of the future. The other Trunks is chibi Trunks, who is best friends with Goten. This Trunks, age 8, takes things for granted, having lived comfortably as part of the Capsule Corp. empire and knowing no hardships that future Trunks experienced. Definitely more rambunctious than future Trunks, chibi Trunks is full of wild antics, such as knocking out a fighter, taking his costume and, along with Goten, pretending to be him in order to participate in the adult division of the TenkaichiBudoukai. Trunks, just like his best friend, mastered Supersaiyajin naturally. Trunks can fuse with Goten to become Gotenks. Trunks is Vegita's son. In his future, all of the Z fighters were killed by the Artificial Humans, except for Goku, who died of heart disease. Trunks travels 20 years back in time to give medicine to Goku so he can survive this disease and defeat the Artificial Humans. Trunks' returning in time alters the past in other ways which can be seen later. After giving the medicine to Goku, Trunks goes back to his own time, but returns again three years later to help the Z fighters battle the Artificial humans. During this time, he becomes extremely powerful and surpasses every other one of the Z fighters except for Gohan and (maybe) Goku. The Trunks here, "Future Trunks" and the "current Trunks" are radically different characters. "Future Trunks" is very polite like Gohan and has very strong values, but the current "Chibi Trunks" has a bad attitude and is somewhat like his father. Chibi Trunks never truly reaches the power level of his future counterpart; possibly because he lived through mostly peaceful times, whereas Future Trunks did not.
