Saiyan Saga

In this Saga Goku figures out that he is a Saiyan and his brother Radditz arrives to fight Goku. Goku joins up with Picollo and together they fought Radditz. They couldn't beat Radditz because his power level was two high. It was 1500(Oh my god). Even Goku and Picollo charged up couldn't fight the ultimate Saiyan who captured the small half-saiyan Gohan. Gohan became enraged and destroyed Radditz. Goku was killed at the same time. Goku trained with King Kai as he was in Hell and came back to Earth when Vegeta and Nappa were trying to get the Dragonballs. Vegeta killed Nappa because he was doing pathetic against Goku. Goku then faced Vegeta. It was a fair match, until Vegeta turned into a giant ape using an artificial moon. Gohan did the same and then Krillin cut off Vegeta's tail and Vegeta was defeated. Vegeta headed to Namek to find the Namek Dragon Balls, but so did Gohan, Krillin and Bulma.

Freiza Saga