Guest shark Ashton Kutcher shows interest in a device to make baby's feeding time easier; two men skate into the Tank with some high-tech wearable transportation; a culinary student wants to bring drinking vinegars into the 21st century; and a computer crimes expert protects consumers from crowd-hack-attacks on credit cards. Also: an update on two of Barbara Corcoran's Season 6 deals: Pipcorn, the organic mini-popcorn snack, and Scratch & Grain, a healthier way to bake homemade cookies from scratch.

Silicon Valley venture capitalist, Chris Sacca, joins the Tank as a Guest Shark. He finds himself in a heated battle with Lori over a tech education business; two sports fans have a home rental website; an entrepreneur with a unique twist on everyone's favorite hot drink; and an inventor has developed a device that can inflate objects in mere seconds. Also, an update on SWAG Essentials, which did not get a deal in the Tank during season 6.

Silicon Valley venture capitalist, Chris Sacca, returns to the Tank as a Guest Shark. A husband and wife team has a device for babies to stay on track and parents to stay sane; entrepreneurial twins have an online business that can ease the pain of paying for college; and a man has a tech solution to the dreaded parking ticket. Plus, a follow up on Rugged Races, the events company in which Mark Cuban invested during Season 5.

An entrepreneur pitches a smart plate containing food-recognition technology that could solve all your dieting problems; two energetic women have created a sweetener that tastes like honey, but is not made by bees; the Sharks crack up at the sight of an entrepreneur's unique spa business for babies; and a perhaps too-confident Stanford grad believes he's at the forefront of where high tech meets fashion for men's custom shirts. In a follow-up on Ilumi, the company in which Mark Cuban invested in during Season 5, we see how their wirelessly controlled LED lights have illuminated the business world.

All-in-one early education solution; fashion networking mobile app; umbrella entrepreneurs; a way to get kids to eat healthier.

When an entrepreneurial team from Santa Cruz, California, leaves the Tank to discuss an offer for their electric skateboard business, they get a surprise from the Sharks upon their return; an MIT grad from San Francisco, California, gave up a high-paying consultant job to focus on making human-quality pet food delivered fresh to your door; a duo from San Francisco, California, has a new generation of chewable coffee products made to optimize physical and mental function; and a former restaurateur and her husband designed a product that makes gourmet at-home cooking a breeze. Also, a follow-up on mother-daughter team Linda Clark & Gloria Hoffman from the Denver, Colorado, area and their Simply Fit Board, which Lori Greiner invested in during season seven

Entrepreneurs rent tiny houses in the woods; snack chips made with cricket flour; earplugs for listening to music filter out damaging levels of sound; a modern version of a favorite childhood toy; a profile of Barbara Corcoran.

A subscription service that teaches children to code; an app that allows children to use a plush toy to send and receive voicemail; software that automates plant care; an app and website that allows customers to book a day room at a hotel.

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,..

A graphic designer and a patent attorney from Olympia, Washington, have a high-tech way to make children's story time more magical, but the Sharks are skeptical of their business model; a father from Brooklyn, New York, has a brand of functional paternity clothing for new dads; parents from Salem, Utah, bring in their five daughters to showcase a solution to hairy drain problems in the shower and bathtub; and a former pro football player and his business partner pitch a better version of a workout device.

Also, a profile on Sara Blakely, the founder and sole owner of the category-defining company, Spanx, and how her brand was born from a simple goal. She is an advocate of empowering women to be whatever they want to be in order to build successful businesses and create economic opportunity in their communities.

An entrepreneur from New York City presents an innovative line of flatware, cups and plates that makes eating more hands-free and carefree; the only airtight, self-sealing zip-top bag in the world made entirely of pure silicone with all the benefits of glass is introduced by an entrepreneur from California; an Arlington, Virginia, entrepreneur hopes to take nap time to a whole new level; an entrepreneur from Pennsylvania is hoping to sell the Sharks on his non-toxic, super hydrophobic spray that repels stains.

A gadget designed to safely and quickly get children in and out of a car; a lower-cost computer for kids; a data-driven approach to skin care; a device created to bring a robot revolution to children's education; Anne Wojcicki guest sharks.