A firefighter and his wife hope the Sharks make a smoking hot deal for their durable bags made from gear that protects on the front lines of firefighting; a vibrating mat that can calm a crying baby in seconds was born from the experiences of a pedia... (more)tric nurse from Boston, Massachusetts; a former Army intelligence officer and his business partner from Portsmouth, Ohio, have made it their mission to heal America's wounds with an ointment made from essential oils; and a Peace Corps volunteer from Peninsula, Ohio, was inspired by his time in the Amazon rain forest to produce a natural fruit snack made with acai. Also, a follow-up with R. Riveter, which provides jobs to military spouses that Mark Cuban invested in during season 7.