Since the dawn of civilization, humans have wondered who or what created the universe. Religion offers a spiritual answer, but do the latest discoveries in physics show evidence of a transcendent intelligence, or simply that the laws of physics by themselves could have led to the universe in which we live? This episode embarks on a mind-bending scientific search for God, asking physicists and theologians if the seemingly miraculous way the universe has been calibrated to support life is evidence of a creator...whether string theory will eventually be able to rule out the existence of God...why Stephen Hawking says the universe could have been created spontaneously...and how an advanced civilization in another universe could have conceivably created our own.

Ashley's nemesis Tressa returns to sell the Rolex that got her fired. The Golds discover that she never actually paid for it and devise a clever plan to get it back.

Mike takes up paleontology in a remote part of Utah.

The crew finds bad wood and longer hauls at the new tract, and morale suffers; Bobby helps a community that was devastated by a tornado.

Patton Oswalt, Kevin Lee, Joe Mande

Harry Connick Jr., Scott Van Pelt, Mariachi El Bronx

Charles Barkley, Berenice Bejo, Amber Riley

Robin Wright, Parker Young

This special episode takes a look behind the scenes of the popular drama series set in an Edwardian country house just after the turn of the century.