In the third installment of our series, "Busted: America's Poverty Myths," we take on one of our country's most fundamental notions: that America is a land of equal opportunity and upward mobility for all. And we ask why, in spite of a wealth of evidence to the contrary, does this idea persist?

With the help of historian Jill Lepore, Brooke traces the history of the "rags to riches" narrative, beginning with Benjamin Franklin, whose 18th century paper manufacturing business literally turned rags into riches. We hear from Natasha Boyer, a young Ohio woman who was saved from eviction by a generous surprise from strangers... only for the miracle to prove fleeting. And we consider the efficacy of "random acts of kindness" and the fateful role of luck -- where you're born, and to whom -- in determining success.