Secret Millionaire

Wealthy entrepreneur Dani Johnson, who once was homeless and on welfare, spends a week among the poor in Knoxville, Tenn., in search of those who need her help most.

Real-estate investor Marc Paskin spends a week in a dangerous part of Detroit in search of people and organizations to receive his financial help.

Motivational guru James Malinchak spends a week living on welfare-level wages in Gary, Ind., volunteering and looking for people and organizations deserving of his help.

Entrepreneur John Ferber leaves his luxurious home to live on welfare-level wages for a week in downtown Los Angeles, where he searches for people and organizations actively making a difference in the lives of those less fortunate.

While spending a week living on $6.50 a day in a poverty-stricken area of Houston, Curves Clubs CEOs Gary and Diane Heavin find three organizations to receive money.

Entrepreneur Ali Brown lives and volunteers among the homeless in Venice Beach, Calif., while looking for people and causes she would like to see receive a financial boost.