- Dr. Zachary Smith: Since all The Keeper's animals have been released, he now has plenty of room for passengers. Perhaps we can persuade him to take us back to Earth. After all, what else can he do?
- The Robot: Destroy all of us for what you have done.
- Dr. Zachary Smith: What "I" have done? Now you listen to me, you ungrateful wretch. You will erase that from your memory banks. He must never know we were responsible.
- The Robot: Not "we," "you."
- Dr. Zachary Smith: An intelligent conversation with one's self is so much more rewarding than a discussion with a dolt.
- Prof. John Robinson: I was hoping you'd show up.
- The Keeper: Were you?
- Prof. John Robinson: If you hadn't come to see us, I'd have come to see you.
- The Keeper: You're either a good liar, Prof. Robinson, or you are innocent. I intend to find out which.
- Maj. Don West: Now, wait a minute...
- The Keeper: Silence! You try my patience. I should destroy all of you now, reduce you to pitiful grains of dust which the winds would blow away across the wasteland of this planet.
- Dr. Zachary Smith: I'm sure the young man meant no harm. Uh, let us all try to keep our tempers and act like intelligent beings.
- The Keeper: "Intelligent beings" - you flatter yourself. You are less than the insects which I crush beneath my heal as I walk.
- The Keeper: You have released hundreds of animals. They will eventually take over this planet. You will not be able to perform the most simple task outside without being exposed to danger.
- Dr. Zachary Smith: You will HAVE to take us back to Earth now, won't you? It wouldn't be humane to leave us here to die.
- The Keeper: You not only act like a fool you talk like one.
- The Keeper: How shall I punish you? I could put you in one of my cages with this information on the door: "Foolish Earth man, low intelligence level, has little regard or loyalty to its kind. Specimen must be regarded as the worst example of its species."
- The Keeper: All the animals are safely in their cages on my spaceship - all except one. As a reminder of my visit here, I am leaving this creature with you.
- Maj. Don West: We've had enough trouble with your monsters. Take 'em away.
- The Keeper: No. It is a fitting punishment for the trouble you have caused me.
- Dr. Zachary Smith: Safely aboard. You will take off immediately.
- The Robot: I will need time to study the controls.
- Dr. Zachary Smith: You may have exactly five seconds. Well? What are you waiting for?
- The Robot: I must scan and compute control systems. I do not wish to make an error.
- Dr. Zachary Smith: You always have to make a problem out of everything, don't you? It's all perfectly simple. This one probably starts the power system.
- The Robot: Warning. Do not tamper with alien controls.
- Dr. Zachary Smith: Nonsense. Any one of these could whisk us away from here.
- [Touches control and hears ominous sound]
- Dr. Zachary Smith: I wonder what that was.
- [Touches another control and door opens, loud growling heard]
- Dr. Zachary Smith: I think I may have done something wrong. Come along.
- [Dr. Smith and the Robot leave the ship]
- Dr. Zachary Smith: Well, come along! Come along, you ninny! It's all your fault, you tin-plated fool. We missed a golden opportunity to leave this miserable planet!
- The Robot: Danger! Extreme danger! All creatures escaping!
- [Growling as creatures escape down the ramp]
- Dr. Zachary Smith: No!
- [Smith and the Robot watch as dozens of creatures escape. A gigantic owl-like creature swoops down and advances towards Smith, who screams]
- Dr. Zachary Smith: Do something you fool! Don't just stand there!
- [Robot blasts creature with laser beam and it disintegrates]
- The Robot: Immediate danger has passed. Period of reasonable safety will ensure.
- Dr. Zachary Smith: 'Reasonable safety' isn't good enough for me. Let's get back to complete safety of the Jupiter 2.
- The Keeper: You are to give me the children, Penny and Will. If not, I will leave you at the mercy of the animals.
- Maureen Robinson: Aren't you forgetting a small ingredient for happiness known as love?
- The Keeper: You're talking about an emotion common to Earth people. Fortunately, I do not suffer from this weakness.
- The Keeper: You deserve to be punished after what you have done.
- Dr. Zachary Smith: But I didn't turn your animals loose for myself. It was for everyone!
- The Keeper: Your sincerity has the hollowness of a lie. What a miserable creature you are, but I have need of you.
- The Keeper: I have issued an ultimatum to the Earth people. They are to give me the two Earth children or I will not return the animals to their cages.
- Lighted Head Leader: Is this wise?
- The Keeper: I am fully aware that I will lose some of my animals, but the Earth children are unique specimens and well worth the loss.
- Lighted Head Leader: Very well. You may continue; however, you must not let your desire for these Earth children supersede all else. You have many rare specimens and they must be protected.
- The Keeper: I will remember.
- Will Robinson: The forcefield is still on.
- Penny Robinson: That only stops people coming in, not going out.
- The Keeper: After what I have done you can still show kindness to me? You are indeed unusual creatures.