The contestants must build a spy car that can blind a vehicle in pursuit. Plus, they spend six minutes in an open coffin filled with snakes, rats, and worms.
Seven remaining competitor revisit the Needle in a Haystack myth and attempt to improve on the original team's techniques.
It's a myth straight out of the A-Team - can you make a weapon out of junkyard scrap? Then, they find what it takes to make a bike impossible to ride.
Elite builders face off to become the next Mythbusters crew and test two tall tales - the sideways ejector seat and infamous 'Deflategate' football.
The remaining competitors return attempt to solve the myth about painting with explosives. Plus, they test the theory that alcohol increases creativity.