"The nightmare is over, Cell! Die!"
Free the Future (もう一つの結末!!未来はオレが守る, Mo Hitotsu no Ketsumatsu!! Mirai wa Ore ga Mamoru) is the twenty-ninth episode of the Cell Games Saga and the one hundred ninety-fourth overall episode in the uncut Dragon Ball Z series. The episode first aired on July 21, 1993. Its original American air date was December 29, 2000.
The episode starts out with Future Android 17 and Future Android 18 destroying a city and killing humans, and having a wonderful time doing it, too. Trunks arrives in his timeline and the first thing he does is reunite with his mother. He tells her about his adventures with Goku, Cell and the Cell Games and Goku’s sacrifice. Bulma was stunned when Future Trunks told the part of when Vegeta went berserk when he was killed by Cell. Suddenly, on the radio turned to an emergency broadcast, telling them that the Androids were causing havoc in Parsley City. Future Trunks gets up and flies off to intercept them in their tracks.
In Parsley City, Future Android 18 is on a blasting frenzy, destroying everything in her sight. Future Android 18 was mad at Future Android 17 for killing the guy she thought was cute. She complains that he destroys everything she likes. Suddenly, Future Android 17 gets shot in the face by a old man with a gun who was the father of the kid who Future 18 said was cute, and just as Future 17 was going to shoot the old man with his pistol, Future Trunks arrives in his Super Saiyan form. Future Android 17 and Future Android 18 were smirking at Future Trunks, remembering that Future Trunks tried to destroy the Androids before, but he could not. Future Android 18 decides to kill Future Trunks since she was in "a bad mood." Both Androids, however, were oblivious to the fact that Future Trunks has far surpassed them in strength, speed, and power due to Future Trunks' intense two-year training within two days via Hyperbolic Time Chamber. Future Android 18 shoots a Power Blitz at Future Trunks, but he dodges it and uses hyper speed to get behind her. She turns around only to be punched in the face and into a building. Future 18 gets up and charges at Future Trunks, but he appears behind her using his speed. She tries to strike him, but he blocks every attack and throws her away. Future Android 18 shoots another Power Blitz, but the powered up young Super Saiyan dodges it with ease.
She falls to the ground, and Future Trunks gives a speech about how they feel powerless, and that the feeling of complete helplessness was how the people of the planet feel every day. The two Androids decide to tag team him and both charge, but Future Trunks dodges them, and knocks Future Android 17 down. Future 18 shoots a huge energy blast at Future Trunks, but he blocks it and fires a massive point blank energy wave at Future 18, yelling "This is for Gohan!" Future Android 18 is destroyed and Future Trunks kills Future Android 17 with ease. After the smoke clears, Future Trunks comforts the old man, and then remembers that the future is not safe yet, as there is still someone out there waiting to strike: Future Cell.
Some time later, Future Trunks is preparing to go back to the past to tell his friends the good news, but before he can depart, he senses Future Cell lurking in a corner and orders Bulma to go back inside. Bulma initially thinks that Future Trunks has a girlfriend approaching, but Future Trunks' stern silence causes her to realize that his motivations for sending her back inside are far more serious. Future Trunks exposes Future Cell's plan to kill him and steal his Time Machine. Future Cell is shocked to know that Future Trunks knows who he is, but realizes Future Trunks must have already went into the past and found out. Future Trunks also tells Future Cell that he has already killed the Androids; Future Cell shrugs this off and engages Future Trunks in combat to go to the past via Future Trunks' Time Machine. Future Trunks says its fine as long as he can beat him, and sends Future Cell flying with a Blaster Wave.
Future Cell lands at a clear wasteland area and Future Trunks follows. Future Cell announces that he is going to absorb Future Trunks, but Future Trunks shushes him and goes Super Saiyan. Future Cell also powers up and charges at Future Trunks with a punch, but Future Trunks blocks it and punches him, sending him flying. Future Trunks appears in front of Future Cell while he is still in the air to scare him, and Future Cell tries to punch him, but Future Trunks uses super speed to appear behind him and kicks him up, then appears above him. Future Cell hurls an energy wave at him while still flying at him, but Future Trunks knocks it off to the side and knocks Future Cell down to the ground, where he lands on his feet. Future Cell becomes outraged and confuse as to why Future Trunks is not only a lot stronger and faster than Future Dr. Gero's data indicated, but how he is so much stronger than Future Cell himself, just like with Future Android 18 and Future Android 17.
Future Cell turns around and gets punched in the jaw by Future Trunks, who moves faster than Cell's senses can keep up with, kicks him up, uses super speed again and knocks Future Cell to the ground, this time making a crater. Future Trunks lands as Future Cell pulls himself together, saying how this is Future Cell's fault by killing all those people. The frustrated Future Cell swipes his tail at Future Trunks. However, Future Trunks catches it and starts spinning Future Cell around, finally throwing him up into the air. Future Cell flails around, before stabilizing himself. Unable to match Future Trunks, Future Cell becomes enraged and, saying he will destroy the Earth and finish Future Trunks off, he cuffs his hands together and starts charging up a Kamehameha. Future Cell stops when he realizes Future Trunks is powering up a huge energy blast. Future Trunks declares that the nightmare is over and quickly launches the Heat Dome Attack, which obliterates Future Cell, thus putting a permanent end to the androids' reign of terror in his timeline. Future Trunks powers down and thanks everyone for helping him through this.
Meanwhile, in present time, King Kai is building a new house on a tree on the Snake Way while Goku, Gregory, and Bubbles are playing tag. King Kai finally finishes the house, and Goku checks it out, breaking it to pieces as soon as he touches it. Goku believes its a sign and wants to go to Grand Kai's planet. He finally convinces King Kai and he, King Kai, Gregory, and Bubbles start walking on the Snake Way.
- Future Trunks destroys Android 17, Android 18, and Cell of his timeline, ending their reign of terror and finally bringing peace to the future.
- Future Trunks (Super Saiyan) vs. Future Android 18 and Future Android 17
- Future Trunks (Base, Super Saiyan) vs. Future Imperfect Cell
- Power Blitz - Used by Future Android 18, but Future Trunks easily avoids the technique.
- Infinity Bullet - Used by Future Android 18, but Future Trunks easily deflects them.
- Change the Future - Used by Future Trunks to destroy Future Android 18.
- Another End - Used by Future Trunks to destroy Future Android 17.
- God Breaker - Used by Future Trunks to destroy Future Android 18 and Future Android 17 as part of his "Change the Future" and "Another End" attacks respectively.
- Kiai - Used by Future Trunks to knock away Future Cell to a deserted location.
- Kamehameha - Used by Future Cell in an attempt to destroy Future Trunks, but Future Trunks fires his attack before Future Cell could finish charging.
- Heat Dome Attack - Used by Future Trunks to destroy Future Cell.
- This episode is the final showdown from the TV special, Dragon Ball Z: The History of Trunks.
- This is Future Trunks' final appearance in the Dragon Ball Z TV series. He would later appear in the movie Dragon Ball Z: Bojack Unbound and also during the ending credits of Dragon Ball Z: Wrath of the Dragon. His timeline continued in the video game Dragon Ball Z: Shin Budokai - Another Road, where he encounters Majin Buu and reunites with Gohan from his timeline and the Z Fighters from the present.
- There is a scene where the Time Machine behind Future Trunks says "Capsule Coop" on it instead of "Capsule Corp."
- The old man that was in the car shot Android 17 eight times with a six-cylinder revolver.
- Before Future Trunks destroyed Future Cell with the Heat Dome Attack, Future Trunks' eyebrows are black in one frame, despite the fact that he is a Super Saiyan, which is especially odd considering that Trunks doesn't even have black hair.
- When about to fire at civilians, Android 18 says "Time for bonus points", her timeline counterpart says the same thing in the episode before when revealing herself to the Z Fighters.