Max and Duke are rescued by a white rabbit named Snowball, the leader of "The Flushed Pets"—a gang of feral sewer-dwelling animals who hate humans because their owners mistreated them.
Max dan Duke diselamatkan oleh putih bernama Snowball, pemimpin "The Flushed Pets" —sebuah geng liar hewan-hewan penghuni selokan yang membenci manusia karena pemiliknya menganiaya mereka.