Chapter 1: Cell's defeat
The original story goes like this. Future Trunks (sin if Vegeta and Bulma) comes to the past to warn the z-fighters of two androids that appears in 3 years time, and gives Goku a medicine for a heart disease he is soon to catch. Vegeta becomes super-saiyan. Goku and the others fight two androids, but a returning Trunks mentions that these are not the androids of his time. Then, Gero releases two more androids, which are the ones of Trunks' timeline. While Goku is healing, the remaining z-fighters epically battle the androids, but constantly fails. Then, Trunks, Gohan, and Bulma discover a new monster. This new monster is yet another android, named Cell, 's ultimate creation. He came from the same timeline as Trunks in-order to absorb androids 17 and 18. Goku heals. The z-fighters train. Cell absorbs android 17 despite the z-fighters' efforts. Vegeta defeats Cell. Vegeta allows Cell to absorb 18. Cell absorbs 18. Cell defeats Vegeta and Trunks. Cell broadcast that he will hold a tournament in 10 days. All the z-fighters train, except Goku and Gohan, who thinks Goku is equal to Cell. The day finally comes. Goku fights first. Goku and Cell fight on par with each other. Cell steals Goku 's energy. Goku withdraws. Gohan fights. Others fight Cell Jr.'s. Cell kills android 16. Gohan turns super-saiyan-2. Gohan destroys the Cell Jr.'s. Gohan toys with Cell. Cell regurgitates 18. Cell begins to self-destruct. Goku teleports him to King-Kai planets where he explodes, killing them all. Cell regenerates in his super-perfect form. Cell disables Gohan's arm. Goku's sprit comes down to aid Gohan in Cell's defeat. Gohan, with the help of an otherworldly Goku, defeats Cell. Or maybe not!