When an entrepreneur from Ft. Lauderdale, FL brings in an imaginative, new recreational sport to the tank, the sharks get a chance to suit up and ram into each other with reckless abandon; two brothers from Athens, GA designed a fashion brand enabling the wearer to do good while looking good; and a couple from Rockford, IL have a solution to the frustrating mystery of the missing sock. And an update on the Hanukkah toy company, Mensch On A Bench designed by Neal Hoffman from Cincinnati, OH, that Lori Greiner and Robert Herjavec invested in during Season 6.