Trunks went back to his time, with a new remote with a larger range...
Because his cyborgs were still stronger than him, and were too far down the path to absolute evil.
Click!
But as he was going to tell his friends, Cell appeared and killed him!
Cell took the time machine, but went further in the past...
Because of that, he created yet again another timeline, with a much different story... The one we all know!