A Dark and Secret Power (不死身で不気味!?スポポビッチの謎, Fujimi de Bukimi!? Supopobitchi no Nazo) is the seventh episode of the World Tournament Saga and the two hundred sixteenth overall episode in the original dubbed and the uncut Dragon Ball Z series. The episode first aired on February 9, 1994. Its original American air date was October 9, 2001.
It is time for Videl and Spopovich to fight. On the last episode, Shin glares at Spopovich with a lot of suspicion. Once Shin goes into the area with the rest of the fighters, he walks up to Piccolo. Piccolo, thinking that Shin is the Grand Kai, asks him if he is. Shin tells him that he is not, but Kibito tells Piccolo who Shin really is: the Supreme Kai. Piccolo is stunned by this, while Shin tells him to keep this to himself because he does not want the others to know yet. He and Kibito then walk off. Goku walks up to Piccolo and asks him about Shin and says "Should I straighten him out for you, Piccolo?" Piccolo, knowing that Shin is the Supreme Kai, begs Goku to not do so and asks Goku to leave Shin alone. This confuses Goku.
On the ring, Videl is fighting Spopovich with all her strength. Every time it seems like a knockout, Spopovich recovers. Her fans cannot understand it, and Mr. Satan refuses to believe it. When Videl becomes desperate, she uses a lot of force and kicks Spopovich's head around, breaking his neck. The World Tournament Announcer says she is disqualified for using excessive force and killing her opponent, but it seems that Spopovich is still alive. Spopovich gets up, turns his head back around, and starts to fight against Videl again. Everyone is shocked and stunned to see this. Goku realizes that something is not right about Spopovich and looks at Vegeta, who nods in agreement.
- Videl vs. Spopovich