Jupiter and Saturn use their gravity trying to stop Planet X from telling the sun that Jupiter destroyed the rocky planets they pull with too much force and caused Planet X to get flung to the Kuiper Belt and beyond. X tries calling Neptune and Uranus to help him but they don’t notice him and continue playing with mini asteroid trying to build something. as X aka Planet X screams for help and has left the solar system after being flung

Neptune:"Huh? Did you say anything?"

Uranus;"no, nothing mate"

They continue building with asteroids despite having no arms legs or body they use there gravity