Strength is the name of the game in this week's challenge. The builders embrace the Wild West and their technical abilities by creating bull-riding characters. The strength of the builds get tested when the characters saddle up on a mechanical bull with ten levels of intensity. The judges want to see characters that survive the bucking bull and look good while getting tossed around. The stakes are even higher with the golden brick that grants immunity on the line, given to the team with the sturdiest and most compelling character.