Previously limited by a heart murmur, Eugene Sledge enlists in the Marines and trains for combat, while Leckie and the 1st Marine Division are put into action at Cape Gloucester. The relentless rain and jungle environment takes its toll on the Marines. Leckie is treated for nocturnal enuresis caused by combat stress and is hospitalized for a number of weeks. The Marines arrive on Pavuvu, which serves as temporary base for the 1st Marine Division.