Frieza Saga   

The series begins as Frieza goes in search of the DragonBalls on Planet Namek. Bulma also discovers that there are DragonBalls on Namek but it would take a thousands of years to get there. Popo appears and tells about the ship that Piccolo and Kame used to travel to Earth. With the faster spaceship, Bulma, Krillin, and Gohan set out on a journey to Namek but arrive on an abandoned planet made to look like Planet Namek. After a while, they figure out it is a fake planet, they leave, and finally arrive on the real Namek. However, just as they reach they, they discover that both Vegeta, Frieza, with his henchmen, have arrived. All are for the DragonBalls, some for different reasons.

Goku later travels to Namek after recovering from the fight against Vegeta. During his trip, he trains at 50x Earth's gravity and 100x Earth's gravity. Meanwhile, Vegeta begins to fight against Frieza's henchmen. He firsts dispatches a scout (Cue) that Frieza sends out by first hiding his power level. Then he fights Dodoria and defeats him. Then follows the fight with Zarbon. At first, it looks as if Vegeta will win easily. Then Zarbon turns into a second form and almost kills Vegeta. Surviving the fight, Vegeta gets stronger and in the second fight with Zarbon, he eliminates him easily. Vegeta joins up with Krillin and Gohan only to ensure that Goku is around to kill him. Frieza then calls on the Ginyu Force to dispatch Vegeta. Gohan and Krillin fight Guldo first, but Vegeta winds up killing him. Vegeta is then beaten by Recoome and Gohan and Krillin tries his luck, but it also beaten. Goku then shows up and dispatches Recoome, Burter, and Jeice. When fighting C. Ginyu, Goku has his body switched into Ginyu's. After more fighting, Goku gets his body back. Then, Ginyu tries to swap bodies with Vegeta, but Goku throws a frog in its path and Ginyu is turned into a frog. Piccolo, merged with Nail, defeats Frieza in its second form but is severely defeated by form 3. Then the fight against Frieza takes place. Frieza goes through 3 transformations to reach his perfect form, each one has tremendous power. Then, Goku uses the Kaio-Ken x20, then the Spirit Bomb. After the Spirit Bomb is hurled at Frieza, everyone thinks Frieza is dead, but out of nowhere, Frieza pops up again! He shoots a invisible attack at  Piccolo and dies, then blow up Krillin in a next dimension. Triggering one of the most important events in DragonBall Z. Goku gets so angry that he turns into a Super-Saiyan form for the first time. He severely defeats Frieza, But Namek is about to explode. The DragonBall are used to wish everyone back who died as a result of Frieza, including Vegeta as a result. Then, everyone on Namek except Frieza and Goku are teleported back to Earth with another wish. Namek blows up and everyone thinks Goku is dead, but Goku goes to planet Yardrat and learns the ability Instant-Teleportation. Meanwhile, Frieza's father, King Cold learns about Frieza's defeat and sends minions out to reassemble Frieza's body. Frieza tells his father about Goku but King Cold doesn't believe him and still thinks that Frieza is still the universe's strongest warrior.

Frieza, King Cold, and their henchmen land on Earth and seek revenge and to destroy Earth. Suddenly, a teenager named Trunks appears out of nowhere, turns into Super-Saiyan, and annihilates the adversaries. Trunks tells Goku that he is Vegeta and Bulma's future son and that he was sent back in time to prevent Goku death so that the future is not in chaos. He also tells of the androids that will appear in three years and everyone trains hard until then.

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