Fox is sending millionaires down in the hole, as they say on "The Wire," for its latest reality venture.

"Secret Millionaire," which net announced today with a six-seg pickup, will send a group of rich folk into "some of America's most impoverished" neighborhoods to make new friends and figure out who's most deserving of a six-figure bit of philanthropic largess at the end of the series when they reveal their true identities.

"Secret Millionaire" hails from RDF USA and will be exec produced by Chris Coelen, Greg Goldman and Bruce Toms. It's based on an RDF show that was a hit on U.K.'s Channel 4. No air date has been set, per Fox.