A ripped down sign, a broken fire hydrant, and now Tundra, the alpha dog of Pembrook, is missing! There's trouble brewing in this quiet Minnesota town, and none of the humans seem to notice. But the dogs do! They can smell it in the air.

So the dogs of Pembrook -- Kito, Chester, and the rest of the gang -- form Dog Watch, a canine version of Neighborhood Watch. Together, they set out to uncover the person (or animal) behind the vandalism in town and to find Tundra. Hopefully they're not too late!