本片为《一条狗的使命》姊妹篇，讲述了狗狗贝拉穿越四百英里回家的故事。

男主角卢卡斯在一座废弃建筑里偶遇幼犬贝拉。尽管他的母亲禁止养狗，他还是说服母亲将贝拉带回抚养，并把贝拉带到他工作的退伍军人医院，为病人们带去欢乐和慰藉。一次意外让长大的贝拉不慎走失，阴错阳差的与主人分隔两地。与主人分离的贝拉心急如焚，翻过雪山和草原，沿着落基山脉、跨越危机四伏的科罗拉多荒野，毅然踏上了未知而艰险的，长达四百英里的冒险归家旅程，只为回到主人卢卡斯身边，回到家里。

曲目：
01. Mychael Danna - Baby Bella.flac
02. Mychael Danna - Mother Dog is Taken.flac
03. Mychael Danna - Mother Cat.flac
04. Mychael Danna - Meet Bella.flac
05. Mychael Danna - Play Time.flac
06. Mychael Danna - Squirrel!.flac
07. Mychael Danna - Sneaking In.flac
08. Mychael Danna - Bella at the VA.flac
09. Mychael Danna - Practicing Go Home.flac
10. Mychael Danna - Squirrel Chase.flac
11. Mychael Danna - Impounded.flac
12. Mychael Danna - To New Mexico.flac
13. Mychael Danna - Good Dog Moon.flac
14. Mychael Danna - Jump The Fence.flac
15. Mychael Danna - Begin The Journey.flac
16. Mychael Danna - Rabbit Chase.flac
17. Mychael Danna - Foraging With Friends.flac
18. Mychael Danna - Continue The Journey.flac
19. Mychael Danna - Big Kitty.flac
20. Mychael Danna - As Time Passed.flac
21. Mychael Danna - Coyote Chase.flac
22. Mychael Danna - Campers.flac
23. Mychael Danna - Avalanche.flac
24. Mychael Danna - Rescue.flac
25. Mychael Danna - Bella Adopted.flac
26. Mychael Danna - Bella Has to Leave.flac
27. Mychael Danna - Axel.flac
28. Mychael Danna - Chained.flac
29. Mychael Danna - Bella is Freed.flac
30. Mychael Danna - Coyote Attack.flac
31. Mychael Danna - Reunion.flac
32. Mychael Danna - Goodbye Big Kitty.flac
33. Mychael Danna - Highway Crossing.flac
34. Mychael Danna - Almost Home.flac
35. Mychael Danna - Where's Lukas.flac
36. Mychael Danna - End of The Journey.flac

小狗真好可爱，谢啦。