FOX has found a show for the Wednesday half-hour following "American Idol" in March: a new unscripted series called "Unan1mous."

The show, in which nine people are locked in a bunker and can't leave until they all agree on who should win a seven-figure cash prize, will debut at 9:30 p.m. ET Wednesday, March 22, following the "Idol" results show. "Bones," which currently occupies the 9 p.m. hour, is moving to 8 p.m. starting March 15.

The premise of "Unan1mous" is pretty simple. Nine people are shuttered inside a bunker and told to debate among themselves who should receive a prize of $1.5 million. They can't leave, however, until they reach a, you guessed it, unanimous decision on who that should be.

If their first vote is not unanimous, however, the prize starts to get smaller and keeps dropping until the group does come to an unopposed decision. Theoretically, the winner could walk out with nothing.

Some contestants will be eliminated from contention for the prize as the game wears on, but they'll have to stay in the bunker with the rest of the players and will continue to cast votes on who should win.

"Unan1mous" was created by Lincoln Hiatt ("The Family") along with J.D. Roth and Todd Nelson ("The Biggest Loser").