In the wake of their father's semi-retirement, Jesse, Judy, and Kelvin must deal with dwindling attendance and donations; Eli is visited by another figure from his past.

Eli does his best to smooth over relations with the Montgomery boys after a visit to their doomsday prepper compound; back at the Salvation Center, the siblings face off against the Board of Ministers.

Tired of life in the lap of luxury, Baby Billy pursues a new vocation as game show host; the Gemstones host a cousins' night for Karl and Chuck.

While Jesse prepares for his initiation into a prestigious secret society, Judy fends off unwanted attention, and Kelvin handles rumors about Keefe. Later, Baby Billy makes an impossible promise.

After a Y2K doomsday fails to materialize, Eli and Aimee-Leigh find themselves flooded with criticism from their congregants...and the Montgomerys. Later, the arrival of Jesse's girlfriend Amber throws an already fragile Judy for a loop.

Threatened with blackmail, Judy turns to Amber for advice, while Jesse goads BJ into a long-simmering fight. As a despondent Kelvin tackles life without Keefe, Baby Billy works on bringing Jesse's miracle to life.

After decades of animosity, tensions between the Montgomerys and the Gemstones finally come to a head. As Eli faces an impossible decision, Jesse, Judy, and Kelvin prepare to meet their maker.

The Gemstone siblings find their way back to their loved ones, and to each other. The Montgomery militia is breaking from within. Chuck weighs his options while Peter hatches a new plan.

The siblings engage in a truly biblical battle, until a miracle of God changes the fate of the Gemstone family forever.