Super 17 Saga Episodes 41-47
In the Home for Infinite Losers Dr. Gero and Dr. Myuu (now dead because he was killed by Goku) decide to come together and create Android 17 again (that died in Z after being absorbed by Cell). Afterwards they open a portal, which Android 17 goes to earth where he locates the Original 17 before he was destroyed and merges with Android 17 to become Super 17. Cell and Frieza were mad because Dr. Gero and Dr. Myuu was able to take over Home for Infinite Loses. Goku sets his mind and does some "mean" things and is sent to HFIL, in order to save Cell and Frieza. Unfortunately the others that have to fight Super 17 does not have a chance.
Goku, Cell and Frieza all in HFIL and still not able to get out because they are defeated and imprisoned. Piccolo, that died with the explosion of earth, goes from "the sky" to HFIL, by causing some trouble there in order to provide and help Goku. With a small trick on Piccolo's part, Dende creates a portal, which Goku goes back to earth and arrives and Goku locates Super 17 and a battle begins (even after most/half the heroes are now dead because of 17).
After some set backs Goku finds out that Super 17 possesses the ability to repel any energy attack and use it for himself. After Goku gets assistance from Android 18, to reek revenge on the death of Krillin, he notices that if Super 17 repels energy that normal attacks can do damage. With the aid of Android 18, and "Ryuu Shenron" first technique they are able to distract Super 17 long enough for Goku to release his mondo Kamehameha wave that destroys Android 17.
41. Tenkai-Ichi Budoukai. Who Will Be Satan's Successor?
42. Die, Goku!! The Revived Strong Enemies Escape From Hell
43. Hell's Devil Fighters!! The Revival of Cell and Freeza
44. The Ultimate Android! The Two #17s Unite
45. Hurry, Goku!! The Plan to Escape From Hell
46. Crash!! Super Goku 4 vs Super #17
47. The Big Reversal! Goku's and #18's 2-Step Attack Explosion