Joshua's trying to find the right code so he can launch the missiles himself.
5 seconds sound clip from the WarGames (1983) movie soundboard.
You can hear this line at 01:40:18 in the Blu-ray version of the movie.
Quote context
[...]
- I tried that. Don't you think I would've tried that?
- Joshua's trying to find the right code so he can launch the missiles himself.
- We checked the random number generators. They aren't even running.
- Look, I got no idea. It could be coming from anywhere.
- Sir, you better get on the headset.
[...]