'Greenleaf' Sneak Peek: Mae & Grace Try to Reclaim Harmony & Hope in Season 4 (PHOTOS)

Rick and Christina Gables

Season 4 of Greenleaf finds the Greenleaf family attempting to maintain a united front in the face of losing Calvary to Bob Whitmore (Beau Bridges) and Harmony & Hope Ministries, but secrets past and present create what could be fatal fractures in the family’s fragile foundation.

The new season premieres on its new night Tuesday, September 3 at 10/9c on OWN, and will see Lady Mae (Lynn Whitfield) and Grace (Merle Dandridge) form an uneasy alliance as they endeavor to reclaim their church from Harmony & Hope. Grace will try from within the church, where she's operating as interim head pastor, and Lady Mae will use her persuasive ways from the outside.

'Greenleaf' Season 4 Trailer: Mae and Grace Take on Harmony & Hope (VIDEO)

'Greenleaf' Season 4 Trailer: Mae and Grace Take on Harmony & Hope (VIDEO)

The OWN series shared a trailer and premiere date for the drama series Wednesday.

But Grace’s mission becomes complicated when a mysterious phone call sets in motion a chain of events that threatens to reveal her biggest secret yet. The Bishop (Keith David) continues working to mend his rift with his wife Lady Mae, while day by day Harmony & Hope’s grip on Calvary tightens.

Click through the gallery above for a sneak peek at the new season!

Greenleaf, Season 4 Premiere, Tuesday, September 3, 10/9c, OWN