Dragon Ball Z - Season 4 Episode 15 : Mystery Revealed
The adventures of Earth's martial arts defender, Son Goku, continue with a new family and the revelation of his alien origins. Now Goku and his allies must defend the planet from an onslaught of new extraterrestrial enemies.
First Air Date : Apr 26, 1989
Last Air Date : Jan 31, 1996
Runtime : 26 min.
Genre : Animation, Sci-Fi & Fantasy, Action & Adventure
Stars : Masako Nozawa, Ryo Horikawa, Toshio Furukawa, Mayumi Tanaka, Naoki Tatsuta, Ryusei Nakao, Joji Yanami, Naoko Watanabe, Hirotaka Suzuoki, Miki Ito, Yuko Minaguchi
Quality : 
- Eps. 1 : The Heavens Tremble1991-09-18
- Eps. 2 : Black Fog of Terror1991-09-25
- Eps. 3 : Battle in Kami's Lookout1991-10-02
- Eps. 4 : Fight With Piccolo1991-10-09
- Eps. 5 : Call for Restoration1991-10-16
- Eps. 6 : Suicidal Course1991-10-23
- Eps. 7 : Extreme Measures1991-10-30
- Eps. 8 : The World Awakens1991-11-06
- Eps. 9 : Brief Chance for Victory1991-11-13
- Eps. 10 : Krillin's Proposal1991-11-20
- Eps. 11 : Frieza's Counterattack1991-11-27
- Eps. 12 : The Mysterious Youth1991-12-04
- Eps. 13 : Another Super Saiyan?1991-12-11
- Eps. 14 : Welcome Back Goku1991-12-18
- Eps. 15 : Mystery Revealed1992-01-15
- Eps. 16 : Goku's Special Technique1992-01-22
- Eps. 17 : Z Warriors Prepare1992-01-29
- Eps. 18 : Goku's Ordeal1992-02-05
- Eps. 19 : The Androids Appear1992-02-12
- Eps. 20 : A Handy Trick1992-02-19
- Eps. 21 : Double Trouble for Goku1992-02-26
- Eps. 22 : Upgrade to Super Saiyan1992-03-04
- Eps. 23 : The Secret of Dr. Gero1992-03-11
- Eps. 24 : More Androids?!1992-03-18
- Eps. 25 : Follow Dr. Gero1992-03-25
- Eps. 26 : Nightmare Comes True1992-04-01
- Eps. 27 : Goku's Assassin1992-04-08
- Eps. 28 : Deadly Beauty1992-04-15
- Eps. 29 : No Match for the Androids1992-04-22
- Eps. 30 : Last Ditch Effort1992-04-29
- Eps. 31 : Closing In1992-05-06
- Eps. 32 : Unwelcome Discovery1992-05-13
