First into the Tank are entrepreneurs from Fort Collins, Colorado, who present their fast-casual restaurant focusing on late-night food done right. Entrepreneurs from Lexington, Kentucky, pitch their line of designer bat houses for an effective natur... (more)al solution to pest control. A husband and wife duo from San Diego, California, introduce their stylish product that keeps your pet safe from predators. Last into the Tank is a world-renowned jiujitsu instructor from Torrance, California, who solves a problem that we never knew we had with his dual fashion design. The Sharks in this episode are Mark Cuban, Kevin O'Leary, Lori Greiner, Robert Herjavec and Daymond John.