Dragonball Z Legacy Story lines-

Chapter one.

At the finals leg of the GT saga, a Cell, created by Dr. Gero had finished it's gestition period.... this though, was not the Z-Fighters regular monster that they just easilly defeated. This one had a new power. One of which none of them could stop. The misson of this creature was to go back through time and to change history. This creature killed a lot of beings changing a lot.
Now, only time can tell of how life will go in the north galaxy. Hopefully, you can stay alive for long enough to see.