TNT's provocative, critically acclaimed series "Saving Grace," starring Oscar winner Holly Hunter, is set to fly ever higher as the network orders an additional 15 episodes.

The series launched July 23 with ad-supported cable's biggest audience for a new series premiere for the year to date. It airs Mondays at 10 p.m. (ET/PT), following The Closer.

"Saving Grace" stars Hunter as Grace Hanadarko, an intense and cynical Oklahoma City police detective. Despite being at the top of her field, Grace lives life hard, fast and on the edge. Wicked-smart and tough, she hits bottom one night when she slams into a pedestrian while she is driving drunk. Horrified at the realization of what she's done, Grace uncharacteristically asks for help and receives it in the form of an unconventional angel named Earl.

The journey for both of them will not be an easy one. For Grace, it will bring up life's most complicated issues. Each episode of "Saving Grace" revolves around a specific case that the detectives are trying to solve, while delving deeper into the characters' lives.