The Hunt for Red October1990

Lieutenant Engineer Melekhin:
I found out what happened to the caterpillar drive. The buffer circuit has been torn out. It was only a matter of time before an overload shut down the whole caterpillar.

Captain Marko Ramius:
What are you saying?

Melekhin:
Whoever did this knew how to cripple the caterpillar in a way not easy to find.

Captain 2nd Rank Vasily Borodin:
Captain, we have a saboteur onboard.

Ramius:
It can't be any of the officers. They had all the time in the world before we put to sea. Must be a member of the crew.

[He turns to Vasily]

Ramius:
Go below, to Putin's cabin. Check his files for information on the crew. We may have to put them off before we planned.