After defeating bowser again and saving their sister, the Mario bros continue as the Brooklyn plumbers, with bowser gone they have nothing to fear for Sophia's safety, or so they thought, Mario and Luigi get the shock of their lives when they discover that bowser is back and he's taken Sophia and daisy (Luigi's New girlfriend) the brothers must travel to the pipes again but little did they know: they enter a parallel world populated by the intelligent descendants of dinosaurs.Ruled by the king of koopas, he has big plans, plans to rule their world. It's up to our unlikely heroes to battle the evil King Koopa and his Goomba guards but can they rescue their sister when they face many new foes such as: bower's children, wario and wuligi and the son of bowser: jr
But more importantly: will Luigi play hero to save daisy the women he loves.
And on a side note: bowser brings back an old face