ABC has turned to “October Road,” slotting the new drama in the plum post-“Grey’s Anatomy” slot beginning next month.

“October Road” will launch Thursday, March 15 at 10 p.m. on the Alphabet, preempting the Ann Heche starrer “Men in Trees” for several weeks. “Trees” is expected to return sometime in mid-April.

Also, net announced that relationship drama “Six Degrees” will return to the air, moving to Fridays at 9 p.m. starting March 23. That slot has been recently filled by repeats and “20/20” segs.

“October Road” revolves around an author (played by Bryan Greenberg) who moves back home and reconnects with the family and friends he left behind — most of whom are bitter about it.

Gary Fleder, Scott Rosenberg, Josh Appelbaum and Andre Nemec exec produce the show.

Originally passed over for fall consideration “October Road” scored a six-episode order and went into production last October after GroupM — which consists of media-buying firms including MindShare, MediaCom, Maxus and Mediaedge:cia — joined ABC TV Studio to co-produce (Daily Variety, Oct. 16).

Show also stars Laura Prepon, Tom Berenger, Warren Christie, Brad William Henke, Evan Jones, Jay Paulson, Slade Pearce, Geoff Stults and Odette Yustman.

As for “Six Degrees,” show centers on six New Yorkers whose lives are somehow intertwined. Stars include Campbell Scott, Hope Davis, Jay Hernandez, Bridget Moynahan, Erika Christensen and Dorian Missick.

J.J. Abrams, Stuart Zicherman, Raven Metzner, Bryan Burk, Ken Biller and Peter Horton exec produce for ABC TV Studio and Bad Robot.