The Hunt for Red October vessel. It is equipped with a cutting-edge silent propulsion system, known as the caterpillar drive, that makes audio detection by passive sonar extremely difficult and enables the submarine to sneak its way into American offshore waters and launch nuclear missiles with little or no warning. As the ship leaves the shipyard at Polyarny, Ramius kills Ivan Putin, his political officer, to ensure that he will not interfere with the defection. Initially, Ramius was instructed to conduct military exercises with Soviet attack submarine "V. K. Konovalov", commanded by his former student Viktor Tupolev, for the purpose of testing the effectiveness of
The Hunt for Red October (film) at which point Ramius requests asylum for himself and his officers. "Red October" is suddenly attacked by "V. K. Konovalov", which has tracked them across the Atlantic. As the two Soviet subs maneuver, one of "Red October"s cooks, Loginov, an undercover KGB agent and the secret saboteur, opens fire. He fatally wounds first officer Vasily Borodin before retreating to the nuclear missile bay, pursued by Ryan and Ramius. Loginov shoots Ramius, wounding him, but Ryan kills Loginov before he can detonate a missile. Meanwhile, "Red October" makes evasive maneuvers with a diversion provided by "Dallas", causing "V. K. Konovalov" to