Phil walks us through the different layers of the atmosphere. He explains what we can expect to find at each layer and the concentration of air molecules at each level.

Bill Nye explains why it gets colder as one travels up through the atmosphere. He uses miniature replicas of a city and a mountain to support his explanation. Bill also briefly touches upon the lapse rate.

Lois removes the krytonite to save Superman. Superman is weak but flies above the clouds to take in energy from the Sun and recharge.

Jimmy performs atmospheric pressure science experiments with Kevin Delaney, including using liquid nitrogen to explode a giant drum filled with ping pong balls.

Lindy visits Kyle's house and is delighted because it's a greenhouse. Kyle states that he figured out how to set it up.