The sub we're after is called the Red October. She's under the command of a man named Ramius.
5 seconds sound clip from the The Hunt for Red October movie soundboard.
You can hear this line at 01:29:02.700 in the Blu-ray version of the movie.
Quote context
[...]
- Captain, radio. We're receiving flash traffic on the VLF emergency circuit.
- Chief, excuse us for a second.
- Leonard, come on out of there.
- The sub we're after is called the Red October. She's under the command of a man named Ramius.
- Now, there's the possibility that he and a good portion of his crew are attempting to defect.
- You say the boat's called the Red October?
- Right.
- Well, it seems the circumstances have changed somewhat, Mr. Ryan.
- Get this man some dry clothes. I'll be in the conn.
[...]