Nenhuma das URLs está funcionando atualmente. 
Mar. 25, 1992
Dragon Ball Z: 4x25
Follow Dr. Gero
Our heroes make a startling discovery: Android 20 is none other than Dr. Gero himself! Before they can act on this new knowledge, the diabolical doctor flees to his secret laboratory, where he intends to awaken more killer androids!
4 - 1The Heavens Tremble Sep. 18, 1991
4 - 2Black Fog of Terror Sep. 25, 1991
4 - 3Battle in Kami's Lookout Oct. 02, 1991
4 - 4Fight With Piccolo Oct. 09, 1991
4 - 5Call for Restoration Oct. 16, 1991
4 - 6Suicidal Course Oct. 23, 1991
4 - 7Extreme Measures Oct. 30, 1991
4 - 8The World Awakens Nov. 06, 1991
4 - 9Brief Chance for Victory Nov. 13, 1991
4 - 10Krillin's Proposal Nov. 20, 1991
4 - 11Frieza's Counterattack Nov. 27, 1991
4 - 12The Mysterious Youth Dec. 04, 1991
4 - 13Another Super Saiyan? Dec. 11, 1991
4 - 14Welcome Back Goku Dec. 18, 1991
4 - 15Mystery Revealed Jan. 15, 1992
4 - 16Goku's Special Technique Jan. 22, 1992
4 - 17Z Warriors Prepare Jan. 29, 1992
4 - 18Goku's Ordeal Feb. 05, 1992
4 - 19The Androids Appear Feb. 12, 1992
4 - 20A Handy Trick Feb. 19, 1992
4 - 21Double Trouble for Goku Feb. 26, 1992
4 - 22Upgrade to Super Saiyan Mar. 04, 1992
4 - 23The Secret of Dr. Gero Mar. 11, 1992
4 - 24More Androids?! Mar. 18, 1992
4 - 25Follow Dr. Gero Mar. 25, 1992
4 - 26Nightmare Comes True Apr. 01, 1992
4 - 27Goku's Assassin Apr. 08, 1992
4 - 28Deadly Beauty Apr. 15, 1992
4 - 29No Match for the Androids Apr. 22, 1992
4 - 30Last Ditch Effort Apr. 29, 1992
4 - 31Closing In May. 06, 1992
4 - 32Unwelcome Discovery May. 13, 1992
Portuguese