КОГДА СТАРЫЙ МОТОРИСТ УСЛЫШАЛ «ШЕРШАВЫЙ» ЗВУК, СМЕРШ НАЧАЛ ОХОТУ

Winter 1943. The Urals. Strange malfunctions begin to occur at the USSR's largest tank factory. The new T-34-85s, before even reaching the front lines, suddenly turn into dead steel boxes. Engines seize. Crankshafts break. Pistons wear down, as if someone had poured sand inside the engine. SMERSH receives an order: immediately find the cause. KGB Captain Arseny Gromov arrives at the Krasny Molot factory, a giant that produces tanks for the entire front. But the deeper he delves into the investigation, the more terrifying the truth becomes. Someone in Workshop No. 3 is methodically destroying the engines from the inside. A pinch of abrasive powder. One oiler. One man on the conveyor belt. And dozens of Soviet crews are doomed to burn to death in tanks that should never have broken down. The suspects are the chief engineer, the quality control chief, the veteran foreman, the silent engine mechanic, and the shift supervisor with a mysterious past and a German seal in his personnel file. But the scariest thing is that the saboteur is still working inside the plant. And while SMERSH searches for the enemy, new T-34s are already heading to the front with engines that could fail at any moment.