Mark Rober's CrunchLabs
Season 4
20267 episodes
Episodes
E1Moving Train Jump Test
2026-06-25 · 18m
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!
E2Lasers vs. Lightning Destruction Test
2026-06-25 · 28m
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.
E3Glitter Bomb 2.0 vs. Porch Pirates
2026-06-25 · 16m
Actor Macaulay Culkin joins Mark as he unleashes upgraded bait packages full of glitter — and stinky fart spray — to lure potential thieves.
E4How to Escape a Police Sniffing Dog
2026-06-25 · 25m
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?
E5Backyard Squirrel Olympics 3.0
2026-06-25 · 22m
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.
E6I Built My Own Space Satellite
2026-06-25 · 21m
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.
E7I Spent $5M So You Can Go to Space
2026-06-25 · 19m
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?