Dragon Ball Z Kai (2009)

S3E5 Welcome Back, Goku! Confessions of the Mysterious Youth, Trunks!

After an intense sparring match that pushes both warriors to their Super Saiyan limits, Goku’s mysterious opponent finally opens up about where he truly comes from. The powerful stranger, who seems strangely familiar, reveals he has traveled from the future—and his mission is urgent. He carries a dire warning that could change everything for Goku and his friends.