Season 3

01 Lava vs Laser Destruction Test
23mWhat'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.
2026-03-16
02 Backyard Squirrel 2.0 - Bank Heist
17mMark 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.
2026-03-16
03 Building a Liquid Sand Hot Tub
9mWith 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.
2026-03-16
04 This Ball Is Impossible to Hit
22mMark uses the magic of engineering to level the playing field in a stacked competition against the world's greatest wiffle ball players.
2026-03-16
05 Vortex Cannon vs Drone
21mMark explores the possibilities of anti-drone defense technologies with a crew of backyard YouTube engineers... and the world's largest vortex cannon.
2026-03-16
06 Glitter Bomb 1.0 vs Porch Pirates
8mStolen packages? Not so fast. Mark builds the original "Glitter Bomb" trap to combat porch pirates-and really make them regret their life choices.
2026-03-16
07 Engineers vs Food Robots
13mFrom 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.
2026-03-16
08 Mark Rober vs Ninja Kidz
8mIt'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.
2026-03-16
09 Engineers vs Custom Go Kart Racing
10mCrunchLabs product designers get 24 hours to build and race their own custom go-karts incorporating engineering know-how-and the element of surprise.
2026-03-1610 Episode 10
No synopsis yet.

