Cal Quinn, leader of U Star, an evangelical megachurch, announces an expansion into the US that stuns his family. As the family's rivalries flare, Cal's relationship with Rosa, a troubled churchgoer, threatens the ambitious expansion.

Cal locks horns with a psychologist who challenges his faith as he suffers a breakdown following Rosa's suicide, and the rest of the Quinn's clash over who will lead Sunday Service in his absence.

Cal returns to U Star with plans to bring Jed back into the fold and solve the threats the church is facing from Charity Tax bill. Abi draws Juno further into the church.

Moses is put into the hospital after a tragic accident and the family prays for a miracle. Issy confronts Benji about his secret, and Dion and U Star are in hot water with Maddox's latest scandal.

The Quinn's are divided by the U Star Women's Conference and the male-only Wilderness Walk; Abi hosts a surprising visit from Kasey Leeway, an American pastor; Issy demands that the truth about Moses is released.

Issy and Benji take matters into their own hands with their roles in the church; Moses learns more about himself; Jed is given a chance to continue his work, but it comes at a cost.