N.O.E. is a mission in Grand Theft Auto: San Andreas given to protagonist Carl Johnson by government agent Mike Toreno from the Verdant Meadows Aircraft Graveyard in Bone County, San Andreas.
Carl arrives at the airstrip. While he is there waiting calling out for Toreno, he sneaks up behind him, effectively getting Carl in a choke hold. After Toreno lets Carl go and tells him to "wake up and smell the coffee", he explains that his agents are in trouble and they need a package delivered to them; if they don't get it by the nightfall, they will all be dead. Carl, after a little reluctance and confusion as to things, proceeds to the task.
Carl gets in a Rustler with the payload attached to the fuselage of the plane. Carl takes off, with Toreno reminding Carl stay under the radar so that he would not be spotted. He does so, and eventually arrives at Angel Pine, halfway across the state, to drop off the package. He releases the contraband, and makes his way back to Verdant Meadows, again while flying below the radar. Carl arrives at the airstrip, with Toreno congratulating him for a job well done.

(Carl and Toreno at the airstrip.)
Mike Toreno: Got you again, Carl. You're half asleep. I could have killed you in 9 different ways. Wake up and smell the coffee.

Carl Johnson: You need to lay off the coffee.

Mike Toreno: We got a problem. I got some guys out in the field need some equipment. If they don't get it, they'll be dead by nightfall.

Carl Johnson: Then take it to them.

Mike Toreno: Me take it to them?

Carl Johnson: Yeah, why not?

Mike Toreno: I got five guys watching me all the time. Two in that hill. One over there and two by satellite. If I go my guys and I will be dead. I don't have a death wish. I'm a man of peace, son.

Carl Johnson: Yeah, clearly.

Mike Toreno: Take the plane. You're not ready yet so stay low under the radar. Questions?

Carl Johnson: Yeah, just one thing…

Mike Toreno: Get to it.

Carl Johnson: Wait. Hey. Listen! Listen to me for once. Why won't these guys come after me?

Mike Toreno: Oh, they can't because they're all posted on me. One DEA. One FBI. A Russian, a Cuban double agent and my paymasters. Checks and balances. Nobody is watching anybody watching nobody. You know what I mean? Go.

Carl Johnson: Whatever, man.

(CJ begins the journey)

Mike Toreno: Carl, you gotta stay nice and low on your approce or you'll pop up on the rader. Use the canyon as cover.

Carl Johnson: You sure this thing is safe, I can see daylight through the floor?

Mike Toreno: Hey that thing you look like a enthusiast. The US Air Force is less likely to shoot you down.

Carl Johnson: Cool. What's the problem then?

Mike Toreno: I said less likely. If you did as many amphetamines as these guys do, you'd be lucky not to shoot anything that moves.

Carl Johnson: Aw, shit

Mike Toreno: Hey, just stay low and you'll be fine

(If Carl flies over the radar.)

Mike Toreno: Get below the radar!

(If Carl continues to fly high.)

Mike Toreno: Nap of the earth, Carl. Nap of the earth.

(If Carl gets spotted while flying above the radar.)

Mike Toreno: Shit, you've been spotted!

(Carl manages to return to the airstrip safely.)

Mike Toreno: Nice going, Carl. You did really good, kid!

The reward for completing the mission is $15,000. The mission Stowaway is unlocked.
If Carl gets spotted while flying over the radar, there will be at least one Hydra chasing him.
despite dropping the cargo Carl has still got a timer on him.