While Mother, Father, and the children face hostility from their new atheist collective, Marcus sets out to fill the walls of an ancient church with Sol’s worshippers.

Using his mysterious new powers, Marcus rescues a group of Mithraic prisoners, while Mother discovers the serpent is not a maneater but an herbivore. Father works through his frustration over Mother’s decision to spare the serpent’s life by engrossing himself in his work project, the regeneration of an ancient android.

Grandmother reveals her own agenda, Marcus seeks revenge, and Mother sets out to neutralize the serpent – but is leveled by the fallout.