Maureen Robinson: [finding Smith has disassembled all the guns] Can you put these together again?
Dr. Zachary Smith: What exactly do you take me for, Madam, some fumble-fingered recruit?
Maureen Robinson: Frankly, yes!
Dr. Zachary Smith: If you wish to spare the tender feelings of your little brood, go right ahead. I at least am willing to face the truth.
Judy Robinson: Suppose you tell us what the truth is, Dr. Smith.
Dr. Zachary Smith: Gladly. We have been through a barrage.
Judy Robinson: A barrage?
Maureen Robinson: What's going on in that devious mind of yours?
Dr. Zachary Smith: My dear madam, I can hardly expect you as a non-military female to comprehend, but it is painfully clear to me.
Judy Robinson: I'll tell you what's clear to me, Dr. Smith.
Maureen Robinson: Suppose you explain it to us.
Dr. Zachary Smith: Very well. It's a universal military tactic to lay down a barrage before launching... an invasion.
Dr. Zachary Smith: [as a meteor shower bombards the planet] I knew it! Doomsday!
Maureen Robinson: [examining a crater] Well, Judy, what does that look like to you?
Judy Robinson: A meteor crater.
Maureen Robinson: Penny.
Penny Robinson: What else could it be?
Maureen Robinson: Dr. Smith?
Dr. Zachary Smith: A shell hole!
[Maureen and Judy read John's speculative notes on the planet's inhabitants]
Prof. John Robinson: [voiceover] My greatest concern for our safety is the possibility of encountering mutants - creatures with no exact counterpart in nature. The giants are probably one form of mutant. I fear there may be others. They seem to grow and evolve through a process of metamorphosis, taking on new forms by absorbing all types of organic matter. Now, if this wild theory is true, any mutant we encounter may try to absorb one of us.
Dr. Zachary Smith: My dear child, your mind is too young to accept all the harsh realities of life, yet I believe you should know the truth!
Judy Robinson: What truth?
Dr. Zachary Smith: That was not a dog - at least not in the sense of which we think of a dog. It was an alien spy!
Dr. Zachary Smith: This is a dangerous mission. It requires brains - which naturally I can supply - but it also calls for manpower.
The Robot: In bygone days, when manpower was at a premium, it was often necessary to form a posse.
Dr. Zachary Smith: A posse, of course. Now there, again, is a truly inspired thought. The only question is, however, where can I find the men?
The Robot: Only one male remains at your disposal.
Dr. Zachary Smith: Will? Of course.