chunk: On 6 October 1971, American soldier Jacob Singer is with the 1st Air Cavalry Division, deployed in a village in the Mekong Delta during the Vietnam War, when his close-knit unit comes under attack. As many of Jacob’s comrades are killed or wounded, others exhibit abnormal behavior, including catatonia and a bloody seizure. A terrified Jacob flees into the jungle, only to be bayoneted in the gut.