Tenacious D - Post-Apocalypto

Post-Apocalypto finds Tenacious D thrust into a world of complete and utter destruction following the drop of an atomic bomb. Surviving the attack in classic cinematic fashion (a good old imperishable 1950s refrigerator), the duo quickly learns that new forms of evil have spawned from the blast. One thing becomes apparent for humanity to prevail, Tenacious D must save the world".