A Secret Revealed (何てこった!!金属板になった悟空, Nante kotta!! Kinzokuban ni natta Goku) is the fifth episode of the Baby Saga and the twenty-first overall episode of Dragon Ball GT. The episode first aired on August 7, 1996. Its original American air date was December 19, 2003.
As the battle between Goku and General Rilldo heats up, Pan appears and lets Goku know that she has the three Black Star Dragon Balls back in her possession. Hyper Meta-Rilldo decides to use Pan to his advantage, so he charges her causing Goku to get defensive.
While Goku is flying after Hyper Meta-Rilldo, he spits his breath at the ground and brings it to life. The ground comes up and swallows Goku trapping him in a metal plate. At the same time Hyper Meta-Rilldo fires his breath at Pan and traps her as well.
They return to Hyper Meta-Rilldo's base, and Hyper Meta-Rilldo transports Goku and Pan to Dr. Myuu's hideout. Dr. Myuu is all set to dissect the Saiyans and turn them into machine men when Giru shows up. He pretends that he's going to help, but he starts blasting Dr. Myuu's equipment.
While Dr. Myuu and his minions are distracted by the missiles, Giru decides to free Goku and Pan. With the two now free they get ready to attack Dr. Myuu after congratulating Giru on an excellent acting job, but this gives Dr. Myuu's robots a chance to steal Trunks.
Pan desperately participates in a game of keep away, but when the robots trip, they send Trunks flying and he crashes to the ground in many pieces. Pan begins to cry over having failed to save him, but then Trunks tells her to look up. He reveals that everything has been a plan to get to Dr. Myuu and make him reveal his ultimate secret. Dr. Myuu begins to tremble in fear as Trunks, Goku, and Pan lead him into another chamber, but what secrets are in this chamber? Why is Dr. Myuu suddenly so afraid? Find out on the next GT.
- This episode had the lowest rating for the Dragon Ball GT series on Fuji TV, with 9.6% rating share.
- The movie playing in the old theater, Star Zone, is similar to an episode of Sailor Moon. The villain that the main character is fighting resembles Hirudegarn. The title however, Star Zone, might be a Star Wars parody.
- Episode 37 of the edited Dragon Ball Z dub shares a similar title to this episode.
- In the Blue Water dub this episode is titled What's Happening? Goku Has Become a Metal Slab!.