Joan of Arc leads the French during the Hundred Years' War; Mongol leader Genghis Khan rises to power; Mansa Musa brings thousands of people on a pilgrimage to Mecca.

The artists battle it out as they create dryad protectors of real life forests in this week’s elimination challenge, with two more artists heading home.

The growing fractures in Wonkru threaten to explode once and for all. Meanwhile, in Shallow Valley, Murphy starts a fire, unleashing catastrophic results.