Marcus Jones

Competitors cut, grind and torch 500 pounds of scrap metal; the first to finish the job earn the privilege of choosing their teammates.

Season 3 winner Lia Mort returns to guide the crews through a series of challenges at a local apple orchard; teams race to gather as many bushels of apples as quickly as possible.

In the individual challenge, crew members are tasked with designing and welding a structure that can withstand the crushing force of 1 ton of weight.

Competitors cut, grind and torch 500 pounds of scrap metal; the first to finish the job earn the privilege of choosing their teammates.

Teams are tasked with completing a muddy motocross track to the exact standards of professional riders.

The teams race to locate and purchase a long list of heavy, bulky items from a large home improvement store during the team competition; one crew member faces an extremely difficult decision that could impact their team's future in the competition.