Goku Jr and Vegeta Jr start a new adventure with meeting new friends and foes with everyone of the original Dragon ball z and Super timeline character dead but not the gods of destruction and Zeno. I do not want own any of these characters from DBZ,DBGT, or DBS

The Z-fighters are living a normal safe life, until a year later a new threat comes to earth claiming he's Goku's son and has become a super saiyan 5. How can the Z-fighters deal with this new fighter.