The Bishop and Lady Mae's crumbling marriage threatens to destroy the Greenleaf family, then a two-million dollar IRS tax bill arrives at Calvary, putting the church in danger.

Grace takes Rochelle up on her offer to help start a legal defense fund; Bishop and Lady Mae ask if parishioner Clara Jackson's Powerball winnings can assist with their IRS bill.

The Bishop sends Lady Mae into a tailspin when he surprises her with divorce papers; Grace gives a newspaper interview in Mae's place, while deploying Darius to investigate Rochelle.

Lady Mae visits world famous Pastor Maxine Patterson and endures the Bishop's (Keith David) final attempt to win her back at a round table party. Connie (Jen Harper) asks if Grace is interested in running Calvary.

The Bishop and Lady Mae make alternate plans after Clara denies them the check for the IRS bill. Grace tends to Sophia when a medical emergency sends her daughter to the hospital.

Maxine Patterson visits Calvary during the same weekend that Lady Mae and the Bishop announce their divorce to the congregation; Grace and Rochelle find a case for their legal defense fund.

Grace questions her involvement in the Coralie Hunter case when the district attorney threatens to reopen her case with Mac; the Bishop and Lady Mae disagree on hosting A Day With Lady Mae at Calvary.

Zora is 18 now and firm about going away. Sophia will not go to college, once she is 18. Coralie meets her 2 kids who are in foster care. She declines to take the DA's deal. Tasha leaves. Charity declines to take over the funeral home.

Grace discovers Rochelle's true identity with Darius's help. Kerrissa discovers fraud inside Triumph.

The FBI raids Calvary and Triumph, escalating the Greeleafs's IRS troubles. Grace questions her paternity when she learns Lionel has died.

After Mae's beautiful sermon at "A Day with Lady Mae", Bishop fears he may lose Calvary. Grace gets a paternity test with Aaron. Jacob and Grace work to clear the family name.

Despite the success of Lady Mae's big day, she is denied the right to run Calvary despite support from the Bishop. Grace assumes control thanks to Connie and joins Harmony and Hope Ministries.