At CrunchLabs, Mark Rober transforms wild ideas into reality, blending engineering and outrageous fun for science adventures you'll never forget.
Where to watch
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Netflix
see all options Availability data: JustWatch
- Seasons
- 5
- Episodes aired
- 33
- Latest aired
- S05E02
- Total runtime
- 8h 44min
Timeline when each season aired
- Season 1 November 2025 7 episodes
- Season 2 January 2026 7 episodes
- Season 3 March 2026 9 episodes
- Season 4 June 2026 7 episodes
- Season 5 September 2026 3 episodes
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S04E01 Moving Train Jump Test
June 25 · 18min find the promo
Show synopsis
To answer an assortment of science puzzles, Mark takes his experiments to the next level — on top of a moving train and up high in a hot air balloon!
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S04E02 Lasers vs. Lightning Destruction Test
June 25 · 28min find the promo
Show synopsis
Now it's lasers vs. lightning in a showdown to find out which one is more destructive. With a series of tests, the CrunchLabs crew declares a champ.
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S04E03 Glitter Bomb 2.0 vs. Porch Pirates
June 25 · 16min find the promo
Show synopsis
Actor Macaulay Culkin joins Mark as he unleashes upgraded bait packages full of glitter — and stinky fart spray — to lure potential thieves.
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S04E04 How to Escape a Police Sniffing Dog
June 25 · 25min find the promo
Show synopsis
Mark's running for his life while being hunted down by an expert tracking dog. Can he engineer some distractions to throw the dog off her game?
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S04E05 Backyard Squirrel Olympics 3.0
June 25 · 22min find the promo
Show synopsis
Let the games begin! From a high jump to a spinning balance beam, Mark's set up a series of backyard battles for squirrels competing for the Walnut Cup.
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S04E06 I Built My Own Space Satellite
June 25 · 21min find the promo
Show synopsis
One small step in space, one giant leap for taking a selfie. Mark preps a satellite to snap pics of the Earth photobombing the selfies sent by his fans.
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S04E07 I Spent $5M So You Can Go to Space
June 25 · 19min find the promo
Show synopsis
Get ready for liftoff! After three years of work and spending millions of dollars, can Mark ensure his selfie-taking satellite has a successful launch?