The remaining contestants test two life-or-death myths. First, they test if you can scale 7 stories with vacuum cleaners. Next, they try a Hollywood worst-case scenario: Can an amateur can land a plane using just radio instruction from the ground?

The remaining contestants tackle the two most difficult myths yet: a water heater rocket and a walking-on-water challenge. In this explosive live grand finale, we reveal the winners of our search for the next MythBusters.