A young Chicago entrepreneur plays hardball with the sharks while seeking funding for an innovative Internet business.

First into the Tank are entrepreneurs from Arcadia and Folsom, California, who have a solution to fight back against bothersome telemarketers and scammers. Entrepreneurs from Oakland, California, present their easy-to-use 3D printer for kids to design and print their own toys, while an entrepreneur from New York, New York, pitches her savings and gifting online platform to help kids learn to save. Last into the Tank is an entrepreneur from Labelle, Missouri, who familiarizes the Sharks with her ethical and customizable meat box subscription delivery service.

A beauty product that combines luxury and glamour with safety and quality; a product for cutting cheese; a space-saving beauty organizer; a way to remove pet hair from clothes; an update on FitFighter.

An entrepreneur from San Francisco, California, tries to show the Sharks the upside of investing in her women’s undergarment subscription service. A chef from Falls Church, Virginia, brings out his effortless approach to a classic breakfast meal. An entrepreneur from New York City shows the Sharks her eco-friendly alternative to collecting dog waste. A scientist and former competitive body builder from West Orange, New Jersey, pitches his healthy take on a beloved snack food.

Jax Sheets; reusable, eco-friendly, more comfortable bed sheets that will last you and your spouse year-round (NO), The Pizza Cupcake; pizza flavored bagels shaped like cupcakes (YES), IceBeanie; cooler technology in a beanie to relieve chronic stress headaches, especially after high energy sports games (YES), Draft Top; can opener to remove can tops from draft beer, as well as any other canned beverages (YES)

Ideas include a training system for salespeople, a management system for cargo trucks, family-friendly Las Vegas entertainment and a cat-portrait business. Also: a follow-up on a Season 2 potty-training product for cats.

A shark wants to invest $4 million in a business; a toy-rental business; a bacon-scented wake-up call; an update on a deal from last season.

Will Sharks Barbara and Kevin seal a deal with a kiss when two guys from Utah ask them to sample their flavored mix-and-match lip balm kissing product? A self-professed gadget guy from Ketchum, ID calls a Shark’s lucrative offer “insane” regarding his revolutionary clothing item; during their heated negotiation, the entrepreneur calls Apple Computers co-founder Steve Wozniak for advice. A newlywed from Rockledge, FL who lost her job the day before coming to the Tank hopes the Sharks will invest in her and her husband’s line of innovative, clever kitchen products; and a husband from Derby, KS pitches the Sharks a heat-recycling device which his wife calls “common sense in a box.” Also, a follow-up on Greenville, SC’s Kim Nelson’s homemade Daisy Cakes, which Barbara invested in during Season 2.

An edible flower company; a way to be active yet protected while under the sun; a clean makeup brand; a modern dental tool used for oral care; an update on Foam Party Hats.

The Tank is transformed into a winter wonderland, and entrepreneurs present Sharks with business opportunities that celebrate the magic of the holiday season.

An 11-year-old inventor from San Clemente, California, recycles a skateboard deck to fit inside lockers and backpacks; an entrepreneur from Meridianville, Alabama, revolutionizes aerial sports; a husband and wife team from Vicksburg, Mississippi create outdoor camping gear; and an entrepreneur from San Francisco, California, claims her five-minute meditation app will help the world reduce stress.

A self-tanner geared toward men; a new-and-improved flashlight; a reusable cup service for marathoners; an authentic instant pho.

An heirloom keepsake trunk; an easy-to-sew quilt kit; a line of seamless swimsuits and outdoor performance socks created for women; Jamie Kern Lima guest sharks.

Budding entrepreneurs work to persuade a panel of tycoons to invest in their business proposals in return for a percentage of equity in the company.

An inner-city teacher tries to sell the Sharks on his unique way to get children to learn; the owner of a gourmet food business watches the Sharks fight for a piece of the action; an astonishing offer is made for one life-saving idea.

An entrepreneurial novice makes a less-than-stellar presentation to the sharks; a father-son duo pitches a proposal for a revolutionary new musical product.

An entrepreneur originally from Ghana wants an investment for an Internet business; a man from California wants to franchise his graffiti-removal business.

Three of the sharks make a deal for an innovative Internet company, but before the deal can be sealed, a battle ensues and one of the sharks is ousted.

A young entrepreneur's overconfidence could blow a deal with the sharks; Kevin O'Leary follows an entrepreneur out of the Shark Tank to get the last word after being outbid by another shark.

A veterinarian's product claims to prevent cancer in pets; virtual arcade; a Texas designer pitches a line of fashionable clothing for women.

Two Texas bicyclists have an idea for a portable hand degreaser; a college student is passionate about his environmentally friendly clothing line; the sharks find out if lifelong entrepreneur Cactus Jack lost at least 35 pounds to seal a deal.

Tensions rise when Mark Cuban urges entrepreneurs to ignore the other sharks and negotiate only with him.

Chic fashion accessories for dogs; a breathalyzer app; gourmet mango preserves; an update on the creator of spa-quality body scrubs.

Aromatherapy sprays to help kids afraid of the dark; a carrier for toddlers; protecting hair from cooking fumes; a cooking tray for ramen noodles.

Former professional baseball player Alex Rodriguez; a dissolvable protein pack product; a dual-purpose strap that keeps valuables safe and secure; a solution to keep a beer bottle cold; a healthy alternative treat; an update on Ice Shaker.