A former athlete believes his product can save lives; environmental lawn-mowers; solution to car sickness; kids birthday party franchise.

Things get heated when the sharks deal with a husband-and-wife team.

An energetic entrepreneur from Key Biscayne, Fla., believes he has the best men’s swimwear; entrepreneurs from Alhambra, Cal., present their “better” version of a popular beauty trend; an entrepreneur from Pinecrest, Fla., pitches a solution for eating pasta without the guilt; and an entrepreneur from Kingwood, Texas, has the cure for the dreaded hangover

The Sharks are stunned by the exploits of two sisters with a children's dance company; a chef with tasty seafood products and more

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.

A capsule that keeps beverages hot for an extended period; a new way to clean stuffed toys; reinventing the ice cream experience.

Frozen concentrated gumbo brick; a bird feeder that shocks squirrels; artisan coffee subscription business; wooden home and kitchen items; ECreamery update.

The Sharks start bidding more than the asking price for a product; a pitch prompts a harsh brush-off; managing excess Halloween candy with a children's book and gifts; premium beef jerky; a mirror designed to build self-esteem.

This episode features all millennial entrepreneurs. A man has a product he believes is essential in every college dorm room; two Harvard grads transform shrunken sweaters back to their original sizes; and a surfer dude surprises the Sharks with a lucrative proposition. Also, the Sharks are invited to The White house to meet President Barack Obama and Daymond John is honored with a Presidential Ambassadorship.

Durable bags made out of the material that protects on the front lines of firefighting; a vibrating mat that helps calm babies; an ointment made from essential oils; a natural snack made with acai.

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.

Improvement to a household gardening tool; a food product line featuring a low-carb nut; a safe shaving design; immune support packs designed to reduce unnecessary antibiotic use.

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 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.

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)

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.

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

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

A man wants an investment from the sharks to create an extension of his already successful business; a urologist has an unusual business proposal.

Children seek a backer for an idea spawned during a family trip and the sharks fight for a piece of a mother's furniture business.

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

An Illinois perfume peddler; a San Francisco woman selling luxury soap; an Alabama guitar teacher who says his learning system is unique; a “Mr. Mom” from Baton Rouge, La., with accessories for blue jeans. Also: an update on a gourmet seafood business from Season 2.

The sharks attempt to make the big deal.

Professional dancers Jonathan Roberts and Anna Trebunskaya demonstrate their posture correction device; entertainment reporter Robin Leach and a designer from Florida present stone-studded leather jewelry; a gluten-free cookie business.