Chuck Yeager finally breaks the sound barrier while piloting an aircraft. The people on the ground initially believe that the sonic boom was Chuck crashing but soon realize that Chuck was successful in his attempt to break the sound barrier.

The crew is trying to reach the shuttle that already landed on the asteroid. While traveling to it, the crew members come across a giant ravine in the asteroid and have no way to cross it. Since there is less gravity on the asteroid, they try to jump over the ravine. They successfully jump over it, and their trajectory leads them away from the asteroid, but they manage to turn the engines back on in time to return to the asteroid.

The Empire attacks the rebel base on the planet Hoth.

The astronauts, interns, engineers, and scientists at the NASA Johnson Space Center show us how their work and research sends astronauts to space through a music video.

Luke and others battle against Darth Vader in an effort to destroy the Death Star, before it fires on the Rebel Base.