A developer incites a battle between two of the billionaire Sharks, as they fight to invest in his early education software platform. A fashion blogger hopes to win over the Sharks with her fashion networking mobile app; a pair of entrepreneurs introduce a convenient way for people to access umbrellas on a rainy day; and two business partners have designed a way for kids to enjoy eating healthier. Also, an update on Keen Home, a line of home enhancement products that Robert Herjavec invested in during season 6. (thetvdb.com)