Max the terrier must cope with some major life changes when his owner gets married and has a baby. When the family takes a trip to the countryside, nervous Max has numerous run-ins with canine-intolerant cows, hostile foxes and a scary turkey. Luckily for Max, he soon catches a break when he meets Rooster, a gruff farm dog who tries to cure the lovable pooch of his neuroses.

The quiet life of a terrier named Max is upended when his owner takes in Duke, a stray whom Max instantly dislikes.