Dragon Ball Z: History of Trunk

When Goku dies of a mysterious virus, it seems like the end of the world. But the powerful Master's passing proves to be merely a presage of the horrible tragedies that are on the way. When two androids appear and start destroying the great cities of the Earth, the planet is plunged into darkness and its inhabitants are living in fear. But there's one last hope: Goku's son, Gohan, and a special teenager named Trunks.