After Nikko departs for China, Carla spends more time with Tom, but continues to refuse his romantic overtures. Upon Danny's recovery, Tom informs Travis that he has had the doctor assigned to their unit as medical officer. Tom then surprises Carla by insisting that she leave Nikko because Tom intends to marry her. Tom and the others return to the Kachin hills in time to spend Christmas with the troops, but their celebration is interrupted when the Japanese unexpectedly attack and wound Tom. Ringa learns from a captured Japanese soldier that the strike was planned with inside information. Nautaung is dismayed when he discovers that one of his men, Billingsley, and a native Shan girl have betrayed them. When Nautaung orders the girl to be shot and Billingsley to be "put into the Circle" and ritually executed in accordance with Kachin custom, Travis protests vigorously, but Tom insists that the dangers of jungle warfare demand harsh measures.