Xinxin and Tingting are two girls living in Beijing. Xinxin is the daughter of rich parents, Tingting, a country girl, works on a phone sex-line. Although the two girls don’t know each other in real life, they have a close relationship on the Internet, although Tingting poses as a boy.
Hunan boy Zhu escapes from local tyrants chase, joins the Hunan troop and gets promoted soon. The superior recommends Zhu to the military school where he meets undercover CCP Cheng Kang. Zhu participates in the Northern Expedition after graduation and joins CCP later.