- Jeff Tracy: Brains? Give me a reading.
- Brains: [viewing the radar] There's an unidentified flying object approaching on high-altitude flight path 4-0-8, Mr. Tracy.
- Jeff Tracy: Okay then, Brains. Keep tabs on it.
- Brains: Okay, Mr. Tracy.
- Scott Tracy: 4-0-8? Well, that's not a commercial flight path.
- Jeff Tracy: No, it's quite unusual, I must say.
- Virgil Tracy: What are we going to do, Father?
- Jeff Tracy: What do you expect us to do, intercept? No, as long as our base remains undiscovered, it's unlikely that anyone will attack the island.
- Virgil Tracy: There is one thing we *should* do, though, Father.
- Scott Tracy: Yeah.
- Jeff Tracy: [knowingly] And what's that?
- Scott Tracy, Virgil Tracy: Operation Cover-Up!
- Jeff Tracy: Right.
- [Jeff presses a button; the brothers' International Rescue portraits slide down to show portraits of the brothers in civilian clothing]
- Commander Norman: This is GB7, Aerial Test Control to UK International Tele-Relay. We have an urgent message for you.
- Stan: [to Jim] Jim, that's us.
- Jim: Go ahead, GB7.
- Commander Norman: There is an unmanned aircraft in your vicinity.
- Jim: [alarmed] An unmanned aircraft?
- Commander Norman: We advise you to evacuate Sky Control. Repeat - evacuate Sky Control. Over and out.
- Jim: [to Stan] They're crazy! It's probably a million-to-one chance we'd get hit!
- Stan: Well, they wouldn't have told us to evacuate Sky Control unless we were in real danger! Now, for Pete's sake, get that elevator up here! Quick!