The Sharks start a feeding frenzy for a chance to go into the residential lock business with a man from Orlando, FL who invented a way to incorporate the common key into a mobile phone. Two fitness trainers from Medina, OH hope to convince the Sharks their home gym is better since it provides nitrogen gas-pressured resistance. A young man from Trophy Club, TX asks the Sharks to invest in his age-defying products that were inspired by his older girlfriend. A father from Charlotte, NC designed a 100% recycled sneaker and hopes to get a business deal that he can eventually pass on to his two young sons. Also, a follow-up on Daymond and Mark's Season 3 investment with Alashe Nelson from Miami, FL and his EZ VIP website - where you can buy VIP treatment at nightclubs and special events. Daymond introduces Alashe to Pit Bull, the international superstar who will endorse the business.