When Wang Lei touched the blood-frosted battle flag of the Chinese People's Volunteer Army at the Military Museum, the world suddenly spun around him. When he opened his eyes again, he was sprawled in the snow at Lake Changjin. The howling wind and faint English voices filled his ears. He had transmigrated to November 1950, becoming the political instructor of the 4th Company, 2nd Battalion, 239th Regiment, 80th Division, 27th Army, 9th Corps of the Chinese People's Volunteer Army.