the mice later mysteriously lose contact with stoker, so another general, carbine, sends the biker mice from mars. after their arrival, they land in chicago and meet up with charley davidson, who runs and owns the last chance garage, which becomes the biker mice's base of operations. not long afterwards do they realize the catatonians, led by general hairball and cataclysm, have come to earth in search of stoker, so that they can ensure their claim of the regenerator. evil billionaire ronaldo rump (a parody of donald trump and ricky ricardo with an oversized butt) also seeks stoker, since he owns a regenerator of his own, and uses it for his evil money-making schemes, but it is running low on power.