NOMAD: My function is to probe for biological infestations, to destroy that which is not perfect. KIRK: Sometimes, but tell him your function nevertheless. UHURA: Captain, we're getting a signal from the spacecraft. SPOCK: Intelligence does not necessarily require bulk, Mister Scott. SPOCK: We would have known in advance of any system-wide catastrophe, and in the event of an interplanetary war, there would be considerable radioactive residue. Sensor readings would have revealed the presence of any disease organisms. In addition, we received the routine report from this system only a week ago. SPOCK: An extremely powerful bolt of energy, Captain. SCOTT: Captain, you're not really bringing that thing in here? Besides, once it's aboard, it won't be taking any more shots at us. (What looks like a satellite - antenna at the top, engine at the bottom and flashing lights on the side - is hanging in mid air over the transporter pad.) KIRK: Sensor readings, Mister Spock.
KIRK: If we show it a close-up view of our system, it has no point of reference.
KIRK: Wasn't there a probe called Nomad launched in the early 2000s?
But if this is that probe NOMAD: I will scan your star charts. NOMAD: I have the capability of movement within your ship. (Nomad glides along slowly, in mid-air) KIRK: Now, Scotty, get our warp power up to full capacity.
(The third bolt hits) SCOTT: Shields still holding, sir, but the drain on the engines is reaching the critical point.
KIRK: Has the target changed location, Mister Spock?