Host Tyler Florence welcomes the final three teams to Louisville, Ky., and hops on the trucks with a taste challenge featuring Kentucky's state fruit -- the blackberry. The pressure grows as the teams search the city for the perfect sales location, and only the top-selling team is guaranteed a spot in the finale. For the last redemption battle of the season, guest judge Kelsey Murphy tasks the teams with creating a dish centered around another Kentucky classic, beer cheese. With rain pouring down and emotions running high, one truck's journey comes to an end while the last two teams race to the finale!