John and Don are drilling for radioactive materials. They lower explosives material into the bore and then take cover along with Will, who has been watching. Meanwhile, Penny is exploring the site where Jimmy Hapgood's ship had landed and finds an explosive pellet. She runs back to the ship just as they fire the explosives. Don is unable to stop the countdown and John runs over and tackles his daughter. They're both okay John tells her to go find her mother. Penny tells him that Maureen already said she was busy but John tells her that she can't be there and goes back to work...Read the full recap
Dr. Smith: I might have known it. You have as much Indian tracking blood in your circuits as I have.
Penny: You can't just stay down here until you die!
Mr. Nobody: What is "die"?
Penny: Well, I--I do think I'm not exactly sure myself. But when someone can't speak anymore, or when someone can't move anymore.
Penny: Mother, do you think just a place could think and talk? Well like here, maybe.
Maureen: Well, maybe.
Penny: I asked Daddy if it's only people that could have brains and he said only very few of them do.
(after Penny is knocked out by an explosion)
Mr. Nobody: Penny? Penny! When a person can't talk anymore... when a person can't move anymore... Penny. Please move. Penny, please don't die.
Dr. Smith: It could be that I was mistaken about the possibilities of our finding clay in this area.
Don: Dr. Smith, you've finally said something sensible. But tell me something. Why is it whenever you come near anything, the roof caves in?
Dr. Smith: We all have our good and bad luck, sir. But this time, I was wrong. I concede it.
Dr. Smith: When I think of the value of these rocks back on Earth. Oh, the pain... the pain.