All five Sharks -- Mark Cuban, Anne Wojcicki, Kevin O'Leary, Lori Greiner, and Daymond John -- have made offers on Barb Heilman and Becca Davison's car safety accessory Unbuckle Me. Who will get the deal? From season 11, episode 21 of Shark Tank. Watch Shark Tank FRIDAY 8|7c on ABC, streaming, on demand, and Hulu.