1. Welcome to Catalina Island

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. 4 January 2023. 43 min

Host 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.

2. Perfect Symphony

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. 4 January 2023. 43 min

Part two of a special two hour season four premiere.

3. I Look Like Curious George

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. 11 January 2023. 43 min

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

4. That's a Safety Hazard

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. 18 January 2023. 43 min

Diesel mechanic Quincey Walker guides the crews through a series of challenges that involve servicing automobiles.

5. Crush It!

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. 25 January 2023. 43 min

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.

6. Rise and Grind

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. 1 February 2023. 43 min

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.

7. Skills to Pay the Bills

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. 8 February 2023. 43 min

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