Dr. Gero and Dr. Myuu team up in hell to create a being known as Android Artificial 17. They make a portal in order to go back into the land of the living and escape to Earth. Artificial 17 seeks Android 17 in order to fuse with him and transform himself into Super 17, and he does. In hell, Cell and Frieza had also been upgraded by the scientists, and had planned to take over hell. Goku falls for the plot and gets tricked into going to hell to fight Cell and Frieza. Without Goku on Earth, our heroes don't stand a chance against Super 17. During battle, Dr. Gero is held hostage. With Dr. Myuu's command, Super 17 kills Dr. Gero anyway. Later, Dr. Myuu also gets betrayed and killed. However, Krillin and #18 have also perished in battle. Meanwhile, Nappa escaped to Earth and Vegeta kills him again. Goku defeats Cell and Frieza, but is stuck in hell. Piccolo, who is in heaven, causes chaos in order to be sent to hell where he can help Goku go back to Earth. With a Namek trick, Piccolo and Dende create a portal that allows Goku to enter back to Earth. A battle between Goku and Super 17 follows, and Super 17 is killed.
