At the beginning of Saving Grace's final season, Grace Hanadarko's secret is out.

TNT sets premiere date for Saving Grace's final season

For three seasons, the heavy-drinking and promiscuous Grace (Holly Hunter) has been under the watchful eye of her "last-chance" angel, Earl (Leon Rippy), who wants Grace to give her life over to God. After surviving a 12-story fall without a scratch in the Season 3 finale, Grace has her share of questions, including one she must ask herself: Does my life have a divine purpose?

"That fall puts Grace in brand-new terrain with questions that have now become demands," Hunter tells TVGuide.com. "Grace answers those demands in a really kind of an extreme way, which is how she normally confronts issues. Grace really goes on a journey, in many ways very much alone. The singularity of her journey very much takes shape in this last season."

Of course, Grace has never been prone to blind faith, and that will not change, creator and executive producer Nancy Miller says. "It's one thing to believe in something; it's another thing to act on it," she says. "She fell 12 stories and walked away without a scratch. That's just not possible. Now what do you do with that?"