Mark Rober's CrunchLabsSeason 32026 · 10 episodesEpisodes1Lava vs Laser Destruction TestWhat'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.2Backyard Squirrel 2.0 - Bank HeistMark 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.3Building a Liquid Sand Hot TubWith 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.4This Ball Is Impossible to HitMark uses the magic of engineering to level the playing field in a stacked competition against the world's greatest wiffle ball players.5Vortex Cannon vs DroneMark explores the possibilities of anti-drone defense technologies with a crew of backyard YouTube engineers... and the world's largest vortex cannon.6Glitter Bomb 1.0 vs Porch PiratesStolen packages? Not so fast. Mark builds the original "Glitter Bomb" trap to combat porch pirates-and really make them regret their life choices.7Engineers vs Food RobotsFrom 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.8Mark Rober vs Ninja KidzIt'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.9Engineers vs Custom Go Kart RacingCrunchLabs product designers get 24 hours to build and race their own custom go-karts incorporating engineering know-how-and the element of surprise.10Episode 10Season 1Season 2Season 4Season 5