Alternate future... In which Carole dies of a heart virus... Androids kill everyone that could fight back. Now, there are only a few remaining: Yamma, Trunks, Gohan, Celeron and his family... Unfortunately, the androids made it close to them... Celeron looks at Gohan... Then at Trunks... And finally... At his son/daughter.
Celeron: ... *smiles* Take care of mom for me.
This made you confused at first, but after you realized what he meant, you tried to stop him.
Themes
Super Saiyan Makes a Stand
Death of a Legend
[Enjoy lol. Also, if you could be atleast one of the Androids after the first scene, I'd be glad. Now enjoy]