This saga starts off as Dr. Gero (a villain from Dragon Ball who has a grudge against Gokou because Gokou killed his boss, Red Ribbon. That is a story from Dragon Ball) plots his revenge. He starts off by creating Android #19 to destroy Gokou. Dr. Gero later asks Android #19 to make him into a robot like him, and he becomes Android #20! The Z Warriors meet with Androids #19 and #20 and fight. Once again, after a long battle, Dr. Gero's plot fails as Android #19 is destroyed. Dr. Gero is also destroyed to pieces, but he programmed himself to auto-repair and survives. Android #20 then works on developing a better android model. Meanwhile, he unleashes two of his other creations, Android #17 and Android #18. As time passes, the Z Warriors become aware of the new androids as they battle again and again but always reach a stalemate. However, the Z Warriors are still no match for the androids because the androids are robots and , therefore, do not tire in a long battle while the Z Warriors aren’t robots and eventually run out of energy. Gokou, who was fighting the androids, suffered a heart attack and retreated. Mirai Trunks, who was sent back in time by Mirai Bulma to save Gokou so that he would live to fight the androids and change the future, carries the medicine his mother gave him. Gokou is saved, but the Saiya-jins still do not continue to fight the androids. Instead, they train in a chamber to get stronger. Piccolo, meanwhile, has fused with Kame, his half father. (His story is told in the Dragon Ball series) Later, Androids #17 and #18 grow tired of following Dr. Gero's commands. As a rebellion, they kill him. But, the doctor had just finished creating Android #21. Before he died, he issued the final command to his new android to feast on the rebellionous androids. Android #17 and Android #18 leave the lab and unleash Android #16. But as it turns out, Android #16 is a peaceful android. (This can be shown through his love towards wild animals.) Androids #16, #17, and #18 go to seek Gokou to destroy him. But to stall time while the Saiya-jins train in the chamber room, Piccolo finds the androids first and begins to fight them. Back in Android #20's lab, Cell has finished developing and breaks out of the giant "test tube", promising to fulfill his creator's wish. Cell now flies to find and destroy the androids. On his way, he gets stronger by using his tail, whose end opens, to devour the souls of the unlucky civilians he passes. As a result, he gains their energy and grows stronger. Finally, he meets with the other androids. To our heroes' surprise, they learn that Androids #17 and #18 know nothing about Cell and that they are instead enemies. Android #17 tells that he will destroy Cell and heads out to fight him. But, he does not stand up to Cell and is easily defeated. This is when our heroes learn the great powers of Cell. Android #18 is now worried, but Android #16 flies out to fight Cell. To everybody's amazement, Android #16 is able to stand up to Cell. However, he is still destroyed. Cell now heads for his goal and devours Android #17 with his tail. Cell now changes into Cell — form 2. With the power of Android #17 combined to his, he becomes stronger than ever. Then, he heads over to devour Android #18. Android #18 tries to escape, but she is still eventually devoured. (Yes "she"! Android #18 is female. I forgot to tell you that before... Oops...) Cell now changes into Cell form 3, the strongest form he could reach. (He is known as "Perfect Cell" in this form.) Cell, after devouring the souls of so many people, is no longer an android and becomes organic. After Cell is gone, Bulma collects the body parts of Android #16 and repairs him. But, he is re-programmed to fight on the Z Soldiers' side. Our heroes now head out to fight Cell. But, Android #16 is once again destroyed. Cell grows strong enough and reproduces. From his body came 7 Cell Juniors, young, blue duplicates of Cell. After a few more battles, Gohan, now a teenager, grows angry enough and reaches Super Saiya-jin Level 2 . (SSJ2) and destroys all the Cell Juniors. In one of the battles that follows, Cell is kicked and Android #18 is spit back out. (She is unconscious.) Cell turns back into form 2 and is defeated. But, he activates his self destruct mode so that when he dies, the world will blow up with him. To save the Earth, Gokou teleports Cell out of Earth and into Kaiou-Sama’s planet, where Cell blows up. Thus, Gokou, Kaiou, Kaiou's gorilla, and Kaiou's grasshopper die as well. The Z Soldiers mourn the loss of Gokou, but at the same time they cheer at the victory over Cell. Unexpectedly, a fireball flies out of nowhere and pierces through Trunks. Upon Trunks's death, Cell, in form 3, appears. He tells that when he blew up, a brain cell survived. From the cell, other cells multiplied and he was once again formed. Cell happily laughs as he tells that he is amazed he is able to rebuild himself into form 3! Then, Cell threatens to destroy the Earth. Now it was up to Gohan to try to save our planet. With one arm (the other injured when he let a fireball meant for Vegeta hit him), Gohan prepares a Kamehameha. He fires it at Cell and Cell fires back. A stalemate is meant, but with Kaiou's help, Gokou is able to talk to Gohan and encourages him. Meanwhile, Kuririn protects the unconscious Android #18 while Yamcha, Tenshinhan, and Vegeta attack Cell in hope that this will distract him long enough so Gohan can power up his Kamehameha. With the help of the now dead Kaiou, Gokou (also dead) is able to communicate with Gohan and encourages him to use all his power to defeat Cell. Gohan overpowers Cell and is disintegrated by the biggest Kamehameha ever. (But, Mr. Satan takes credit for Cell's death because of his lies to the reporters.) At the end, the warriors gather the dragonballs to bring those killed by Cell back to life. However, Gokou is still dead because he was already brought back to life once and cannot come back again, but tells that he is okay and is now with Kaiou. Android #18 awakens and flees. However, everybody learns here that Kuririn has develped a crush on Android #18. At the end of this series, there is a short memorial about the life of Gokou.