Great American Dog Show returns to Chicago this weekend
It's the final countdown ahead of the Great American Dog Show that starts on Friday at McCormick Place. For spectators, the only requirement is to show up and enjoy, but for the dogs and handlers who are competing, these last few days are for last-minute rehearsals. CBS 2's Marie Saavedra got a look at the pooches putting in work at Chicago's All Fours Dog Training.