The Last Dragon Ball (最後のドラゴンボール, Saigo no Doragon Bōru) is the first episode of the Fortuneteller Baba Saga and the sixty-eighth episode in the Dragon Ball series. The episode first aired on July 1, 1987.
As the gang rushes to aid Goku in his assault against the Red Ribbon Army Headquarters, Goku seems to really need it at this point. As the newly risen Commander Black and Goku go head to head, the remaining members of the Red Ribbon Army run for their lives and completely desert the base. Using his Battle Jacket (a gigantic robot that can be controlled from within), Commander Black seems to have the upper hand.
However, Goku’s incredible strength proves to be too much for Commander Black, so Black attempts to escape. Goku won't let him get away this time as he grabs a flag pole, leans back and launches himself towards Black. Goku breaks through the Battle Jacket and destroys it. The infamous Red Ribbon Army has failed and Goku has recovered two more Dragon Balls giving him a total of six. Goku meets up with his friends and he tells them the news. His friends are shocked that the Red Ribbon Army were defeated by a child, Goku. He is only one Dragon Ball away from reviving Upa’s father, but how can he find it with his broken radar? Master Roshi thinks about Goku's abilities and he see that Goku crushed (not beat) the Red Ribbon Army by attacking in a straight approach. The Red Ribbon Army had weapons, fire power, and resources, but Goku managed to defeat them. Roshi also says that if he took on the Red Ribbon Army himself, he would have fought them in a different approach, and claims that Goku may be stronger than him.