To show how their smartphone app can improve personal security, two entrepreneurs from Chicago, Illinois, bring a live guard llama into the Tank; two entrepreneurs from Irvine, California, deliver a safer take on the bicycle by innovating the brake system; a trio from Seattle, Washington, have an app that helps shoppers and diners earn free parking in exchange for their business; and business partners from Santa Clarita, California, hope to convince the Sharks to take a shot with their free photo-printing service. Also, a follow-up with former professional football player Al "Bubba" Baker from Avon, Ohio, and his de-boned rib steaks known as Bubba's Boneless Ribs, which Daymond John invested in during season 5.

Two entrepreneurs from Placentia, California, pitch their solution to embarrassing underarm sweat marks and stains; brothers and best friends from Walnut Creek, California, believe their belt buckle that doubles as a wallet is the most convenient way to carry your essentials; U.S. Army veterans from Chicago, Illinois, hope to empower farmers in a war-torn country by helping them cultivate and harvest saffron; and a former executive chef from Colorado Springs, Colorado, with an unlikely story, thinks his multi-purpose mixing bowl will become the next go-to kitchen gadget. Also, a follow-up with Robin "Wombi" Rose and John Wise from Cambridge, Massachusetts, and their 3D paper pop-up greeting cards, LovePop, that Kevin O'Leary invested in during season 7.