
The dogs wander onto a line for the post office. Oblivious to the purpose of a post office, the dogs spend all day waiting in line, attacking mail carriers and even enlist for the army via Selective Service System.
The dogs arrive at the Grand Canyon, who try to solve a puzzle. Upon completing the puzzle, Little Dog quips that the word 'jerk' should've been part of the answer to the puzzle. His voice echoes across the canyon, and misconstrue the echo as another dog insulting them.
The dogs come across a tennis club, where they see tennis balls being served back and forth. Little Dog wants to join them in order to chew them, but gets overwhelmed by the number of tennis balls lying around.