Col. Phelps: When you pulled him out of bed in the middle of the night for this, I wondered if he really knew what he was getting in to.
Pete: He knew the same things all of us knew. I didn't hold anything back from him.
Col. Phelps: Why him, Pete? Why MacGyver?
Pete: Because he has the scientific knowledge and knows how to move fast through rough country. Aside from that he's the best person I know to deal with... whatever it is he's going to deal with out there. And he volunteered. Wouldn't have it any other way.
Col. Phelps: What's he doing?
Pete: Well, he put the torch on it before to melt the casement material so it'd fill in the hole. Now freezing it locks it tight. Right?
MacGyver: That's pretty good, Pete.
Pete: That's the problem. She doesn't stop. She won't give up.
MacGyver: Yeah, well, she gave up this time.
(They stop and look at each other.)
MacGyver: She gave up way too easily.
MacGyver: One thing happened here: you saw what was possible. It might take a little longer, but the world's going to hear from you again.
Dr. Millhouse: You can be sure of it.
MacGyver: The things you're trying to do… I think they're good things.
Dr. Millhouse: Thank you. But I've decided to go into a different direction. I'm going to develop an organism that eats red tape.
Dr. Millhouse: One… giant step backwards for mankind. Now, why don't you two go back to where you came from and get the hell out of my lab.
Dr. Millhouse: If you'd watched a child starve to death, or seen old people living on dog food, you might understand what I'm trying to do here.
MacGyver: An end to world hunger; that's it, huh? You know, you're not the only one who wants to see that happen.
Dr. Millhouse: Have you ever seen hunger, MacGyver?
MacGyver: Yes, ma'am, I have. I've also seen what an out-of-control experiment can do.
MacGyver: Look, Doctor… no one is saying your work isn't valid; I'm a big fan of experimentation. But there comes a time when you have to acknowledge a right and a wrong way of doing things.
Dr. Millhouse: I suppose you think I'm a crackpot, too.
MacGyver: No, I think you're a dedicated scientist - who's gone too far.
Col. Phelps: I just got the pathologists' report on those dead sheep.
Dr. Millhouse: (reading) Arterial blockage, brain malfunction, rapid and sudden muscle deterioration… my god.
Pete: Well, what does that mean?
MacGyver: They died of old age.
Col. Phelps: Washington wants to discuss its disposition.
Dr. Millhouse: Oh, great. I guess this means we run scared and kill it before we have a chance to understand what it means.
Dr. Millhouse: This is so far away from the organism I sent up, we could be dealing with an entirely new form of life here.
MacGyver: I saw animals dropped dead on the spot. They didn't get sick, they didn't run off and hide - they just died. Hundreds of them.
Pete: MacGyver, this is Dr. Millhouse.
Dr. Millhouse: Dragon Lady, as I'm sure you've been told.
Dr. Millhouse: All I sent up was a simple mixture of synthetic growth accelerators - nothing. And it came back something else. Something I've never seen before.
MacGyver: Whatever it is, it's killing things.
Dr. Millhouse: It was essential to my work, Pete.
Pete: But you had no clearance! But as usual, Dr. Millhouse knows best, right? The same stunt you pulled with that Dutch elm tree disease two years ago. Haven't you learned anything since then?
Dr. Millhouse: Yes. I've learned that progress will not wait for a bunch of bureaucrats to get off their duffs to make a decision.
Col. Phelps: And Sandra Millhouse feels she can handle all the testing procedures by herself?
Pete: Listen, that young lady thinks she can run the world. What are a few tests on a little superbug?
MacGyver: You can tell your Dr. Millhouse that bug she put in the satellite kills more than just sheep.
The German episode title is "Gefahr aus dem Weltall, meaning "Danger from the Universe". The French episode title is "Ultime expérience", meaning "Ultimate Experience". The Italian episode title is "La morte caduta dal cielo", meaning "Death Falls from the Sky".