The episode begins with a flashback of Bardock's final battle with Frieza and the death of the Sayian race. Then Goku is shown as a baby being taken care of Grandpa Gohan. Many years have passed since then, and Goku, now at the age of 24, is now married to a woman named Chi-Chi and has a four year old son named Gohan. Goku and Gohan are currently heading over to a happy reunion with Goku's old friends Krillin, Master Roshi, and Bulma. Meanwhile, a strange looking space pod lands in the middle of a farmer field, and out of the pod comes a strange man. The man senses a very high power level and follows after it, hoping to find his brother. Instead of finding his brother, however, he finds Piccolo, a Namekian who came to earth years ago. The two almost start a fight, but before they can, the man senses another very high powerlevel and leaves. Meanwhile, Goku and his son land of Master Roshi's island, but before any one can celebrate, the man shows up, claiming Goku to be his brother.