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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S03E01 Lava vs Laser Destruction Test
March 16 · 23min find the promo
Show synopsis
What's the most destructive substance on Earth? Lava's the reigning champ - but how do lasers stack up? Mark and his friends are about to find out.
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S03E02 Backyard Squirrel 2.0 - Bank Heist
March 16 · 17min find the promo
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Mark ups his backyard obstacle course game to keep four thieving squirrels away from a bank vault full of birdseed and a lifetime supply of walnuts.
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S03E03 Building a Liquid Sand Hot Tub
March 16 · 9min find the promo
Show synopsis
With the right amount of forced air, a hot tub filled with sand can look like a bubbling pot of soup. But how? Mark breaks down the science behind it.
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S03E04 This Ball Is Impossible to Hit
March 16 · 22min find the promo
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Mark uses the magic of engineering to level the playing field in a stacked competition against the world's greatest wiffle ball players.
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S03E05 Vortex Cannon vs Drone
March 16 · 21min find the promo
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Mark explores the possibilities of anti-drone defense technologies with a crew of backyard YouTube engineers... and the world's largest vortex cannon.
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S03E06 Glitter Bomb 1.0 vs Porch Pirates
March 16 · 8min find the promo
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Stolen packages? Not so fast. Mark builds the original "Glitter Bomb" trap to combat porch pirates-and really make them regret their life choices.
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S03E07 Engineers vs Food Robots
March 16 · 13min find the promo
Show synopsis
From cereal and milk to spaghetti and meatballs: Things get messy when the CrunchLabs team cooks up new ways to make Mark's mealtimes more efficient.
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S03E08 Mark Rober vs Ninja Kidz
March 16 · 8min find the promo
Show synopsis
It's not just the Ninja Kidz - it's the whole Ninja Fam! And Mark's challenging them all to a silly series of "Minute to Win It" style challenges.
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S03E09 Engineers vs Custom Go Kart Racing
March 16 · 10min find the promo
Show synopsis
CrunchLabs product designers get 24 hours to build and race their own custom go-karts incorporating engineering know-how-and the element of surprise.
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S03E10 Episode 10
No date find the promo