Mister Bud is a dog of routine. He has wake up time, nap time, rest time, dinner time, etc. And everyone knows to follow his schedule.
Then disaster strikes.  A stranger comes home at "make a fuss time" and throws everything off! Zorro is little bit bossy and Mister Bud wants nothing to do with him. But when the dogs discover they like the same things (like chasing the cat and napping), everything becomes more fun. As long as everyone follows the schedule.