The individual finalists race to demo, smash, cut and stack their way over shipping containers with the first to finish the job crowned the winner of TOUGH AS NAILS.

Savage Crew and Dirty Hands go head-to-head in the final team battle comprised of challenges inspired by the trades.

With the $60,000 cash bonus prize on the line, Savage Crew and Dirty Hands face off in the team competition where they must clean up trash in an alleyway.

Season three competitor and carpenter Lamar Hanger returns to guide the crews through a series of construction challenges.

Crew members compete in pairs to shrink wrap a large container, with the last couple to finish facing the overtime challenge where one person will be eliminated from the individual competition.

Savage Crew and Dirty Hands get tangled up in the team challenge when they must organize and load a 15,000-pound fishing net onto a boat.

Season three competitor and diesel mechanic Quincey Walker returns to guide the crews through a series of auto service challenges.

Crew members visit a plant nursery where attention to detail is key when building a complex planter box in the individual challenge.

Competitors must build a concrete retaining wall for their first individual competition.

Host Phil Keoghan welcomes 12 new crew members to Catalina Island, off the coast of Southern California, to kick off season four, on a special two-hour season premiere.