Zhang He, in anticipation of a prolonged war, leads his army to Dangqu in order to relocate the population of Ba to Hanzhong.

Meanwhile, Liu Bei appoints Zhang Fei as Administrator of Baxi and orders him to take over the region.

Zhang Fei and Zhang He face each other for fifty days, which concludes with a victory for the former, following a surprise attack on the latter.

Narrowly escaping, Zhang He retreats to Nanzheng on foot, and the Ba region becomes part of Liu Bei's territory.