Shadow
[after Sassy is lost in the river]
I shouldn't have made her come.
Chance
It's not your fault, she wanted to come.
Shadow
But it's my responsibility. I had a responsibility to Sassy - to love her and protect her - the same as I have to you... and to Peter. And the same as you have to Jamie.
Chance
But we didn't ask for this job.
Shadow
We didn't have to. It's built in. Has been ever since the dawn of time... when a few wild dogs took it upon themselves to watch over man, to bark when he's in danger, to run and play with him when he's happy, to nuzzle him when he's lonely. That's why they call us man's best friend.
Chance
[narrating]
Looking at him that night, he seemed so wise... and ancient, like the first dog who ever walked the earth. I just hope that one day, I can be like him.