Released from jail, Lang returns to his hometown in Northwest China. As part of a dog patrol tasked with clearing stray dogs before the 2008 Olympics, he bonds with a black stray. The two lonely souls embark on a new journey together.
| Actor | Role |
|---|---|
 Eddie Peng Yu-YanLang Yonghui | Lang Yonghui |
 Tong LiyaRaisin | Raisin |
 Jia ZhangkeUncle Yao | Uncle Yao |
 Zhang YiManager | Manager |
 Zhou YouNie Shili | Nie Shili |
 Hu XiaoguangButcher Hu | Butcher Hu |
 Wang YiquanPolice Officer Liu | Police Officer Liu |
 Niu BenMr. Camel | Mr. Camel |
| YYin YuanzhangNoodle Restaurant Owner | Noodle Restaurant Owner |
 Zhang LiYang Da | Yang Da |
| MMo TuhongzheYang Er | Yang Er |
 Wu YouPatrol Squad Deputy | Patrol Squad Deputy |
 Da YouweiGreenie | Greenie |
 Chubu HuajieMelonhead | Melonhead |
 Wang NaixunFluffy | Fluffy |
 Yuan HongZhao | Zhao |
 Vision WeiBank Teller | Bank Teller |
 Zhao YiLunatic | Lunatic |
 Zhang JianyaMaster Qu | Master Qu |
 Zhang YangDog Race Boss | Dog Race Boss |
 Wang YanhuiGarage Owner | Garage Owner |
 Sha BaoliangJin | Jin |
 Gao QiangLang's Father | Lang's Father |
 Li JiuxiaoZhou | Zhou |
 Liang JingMother at Bungee Jump | Mother at Bungee Jump |
 Huang MiyiMarried Woman | Married Woman |
| AAn JanlinMini Bus Driver | Mini Bus Driver |
| YYang WeiguoMan Who Lost Wallet | Man Who Lost Wallet |
| HHe YifanSloppy Teen | Sloppy Teen |
 Shao LaowuWu | Wu |