The Hunt for Red October

In November 1984, Soviet submarine captain Marko Ramius is given command of Red October, a new Typhoon-class ballistic missile submarine with a stealth "caterpillar drive", rendering it undetectable to passive sonar. Ramius leaves port to conduct exercises along with Alfa-class attack submarine V. K. Konovalov, commanded by his former student Captain Tupolev. Once at sea, Ramius secretly kills political officer Ivan Putin and relays false orders that they are to conduct missile drills off America's east coast. At the same time, American Los Angeles-class attack submarine USS Dallas, tasked with identifying and shadowing Soviet subs as they leave port, detects Red October as it begins its mission, but immediately loses contact once the sub's caterpillar drive is engaged.