The battle to become Lord Sugar's next apprentice intensifies as the remaining candidates reach the series' half-way mark. After a rude awakening from the boss, the candidates are set to work creating branding and advertising for a new multi-purpose household cleaner. The teams are tasked with producing a spotless TV and radio advertising campaign, and try to clean up when they pitch to ad agency heads and industry experts. At the day's end, one candidate will be fired