Beans is a fireman. One day his nephews, Ham and Ex, arrive unannounced at the fire station with a note asking him to watch them. Beans is not much of a babysitter, so the pups have their run of the place. They play with the hose, the protective clothes, the axes and other equipment, send out a false alarm, drive a ladder truck through the wall and around town, and more. Upon their return, they try to pretend they've been sleeping the whole day, but Beans is wise to them and gives them a spanking.