Tough As NailsSeason 42023 · 10 episodesEpisodes1Welcome to Catalina IslandHost Phil Keoghan welcomes 12 new crew members to Catalina Island, off the coast of Southern California; competitors must build a concrete retaining wall for their first individual competition.2Perfect SymphonyPart two of a special two hour season four premiere.3I Look Like Curious GeorgeCrew members visit a plant nursery where attention to detail is key when building a complex planter box in the individual challenge.4That's a Safety HazardDiesel mechanic Quincey Walker guides the crews through a series of challenges that involve servicing automobiles.5Crush It!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.6Rise and GrindCrew 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.7Skills to Pay the BillsSeason three competitor and carpenter Lamar Hanger returns to guide the crews through a series of construction challenges.8Pressure Is On9This Is Not a Sprint, It’s a Marathon10Keep Battling ‘til the EndSeason 1Season 2Season 3Season 5
