This is the opening scene of Trunks Special: 
Goku dying of the heart disease that he picked up on Planet Yardrat. And this is a thing that was averted in DB timeline thanks to Future Trunks' arrival! Thirteen years later, after the Z Warriors are faced with defeating Dr. Gero's androids #17 and #18, also the majority of Earth's Population is wiped out. Only Gohan survives and there is no one strong enough to defeat the androids. Now Trunks is 13 and is listening to the radio about #17 and #18 destroying the city of Pepper Town! So he decides to do something to save the people there, but, when he arrives, it's too late! 
Trunks nearly gets killed, but is rescued by Mirai Gohan, now adult. Trunks asks for Gohan and persuades him to train him to fight 
against the androids. During the long training, Trunks is steadily trying to reach Super Saiya-jin as he's Vegeta's son, but fails every time even if comes close once or twice. Meanwhile, during a battle with the androids in a local amusement park, Gohan and Trunks are both severely beaten. Gohan gives Trunks the last senzu bean to save the teenagers life but he loses one arm. Then Gohan decides to face them alone, but Trunks insists on coming along. To keep him from dying, Gohan tricks Trunks and knocks him 
unconscious. So Gohan faces the androids for what he knew would be the last time. Shortly afterward, Trunks wakes up and follows where Gohan went but only to find him dead. In this heart-wrenching scene, Trunks develops the rage necessary to finally reach Super Saiya-jin. The scene switches for
ward another three years, to when Trunks attempts to fight the androids by himself. He fails again, but survives the battle, and then realizes what he has to do. Using the time machine built by his mother Bulma, Trunks travels twenty years in the past to avert their doomed future.Here, in this page, is available the FULL ENGLISH VERSION (NO SUBTITLES) with the very famous and wonderful Dream Theater's Soundtrack!!!+
DOWNLOAD ALL PARTS BELOW (10 MB/PART) :
Part 1
Part 2
Part 3
Part 4
Part 5
Password: www.dragonballarena.net
At that time Saiyans were serving a powerful warrior, called Freeza, and they were send in the space to conquer new planets to exploit.
In that moment the little Prince comes in the room, greets the powerful Freeza, who seems to have him in his own graces, and leaves for conquering a new planet (this way he will survive the destruction of his own people). After the nth mission, Bardock is quite poorly; his mates depart then for the next target, leaving him on Planet Vegeta in order to recover himself. 
He's still inside the healing capsule when, as he's waking up, has a strange dream: he sees the Kanassian, who hit him at the head, repeating him he transfer him the ability to foresee the future and that soon his people will be annihilated and then he sees his son. He suddenly wakes up and, heard his fellows destination, runs away in order to reach them. He stops for a moment in front of little Kakarotto's cradle and again he has a vision of Planet Vegeta exploding, but he still cannot understand that is the future 
Bardock is at first disbelieving, then he senses the betrayal and flies into a rage, getting easily rids of all his opponents; but then Dodoria himself intervenes and hurls at him a very powerful energy beam and leaves convinced that he has killed him. But the bodies of his mates killed by Freeza's henchmen, have made a shield for Bardock and he is still alive, even if seriously wounded. Without delay departs in order to inform his people and, with his space capsule, meets that in which little Kakarotto has just been sent on a planet called Earth. 
As soon as he lands on Planet Vegeta, he is informed about his son destination and he finally realizes that the ones he had, were not just dreams: now he is sure that he has foreseen the Saiyans' future! He want to advise everyone about Freeza's intentions and, while is running, keeps seeing in his mind the future of his son. But his people doesn't want to believe him, no one pay attention to him and indeed many of them laugh at his words! So Bardock swears he will kill Freeza with his own hands and, suddenly, has a vision: a planet with a green sky, some strange trees, blue grass (Namek) and sees a man from behind who looks just like him but wears an orange suit. He recognizes in him his son; but immediately the Kakarotto's figure disappears and that of Freeza appears! 
Although his body his exhausted for the wounds, Bardock rouses himself, runs away and flies in the space against Freeza, who is leading, on his space ship, towards Planet Vegeta, with the intention to destroy it. But Bardock wants to change that future of destruction! Many warriors try to stop him, but now none can make it! As he gets in front of Freeza, concentrates all his energy and launches an attack; but using just one finger Freeza creates a huge Death Ball and hurls it at Planet Vegeta involving Bardock and also his own henchmen. 
Before dieing, Bardock has one last vision: he sees his son, now adult, facing Freeza, senses what will be his destiny and so he dies with a smile on his face. A giant explosion destroys Planet Vegeta, but not all the Saiyans have been killed: Prince Vegeta has just conquered by himself a new planet. He receives communication about the destruction of his planet and his people due to a meteorite... but the kid doesn't care much and asks if there are any other news...
