A woman seeks an investment for a toilet training kit for cats; the sharks fight for a piece of a million-dollar company owned by a pharmacist.

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

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

An entrepreneur presents a line of luxury maternity gowns; a woman tries to impress the sharks with her homemade cakes; the sharks fight over a stay-at-home dad's product.

An entrepreneur from Chicago hopes the sharks can dig him out of a financial hole; a single mother believes her aromatic lip gloss can help women. Fridge Fronts, a magnetic skin with a decorative finish that can be applied to any appliance. New Era Brands, Clip 'n' Go cases for mints, gum and contact lenses. Thin Gloss, an aromatic lip gloss that helps curb your appetite. Lightfilm, a light-up decal for car windows.

Comic Jeff Foxworthy makes his debut as a guest Shark investor; actor Vincent Pastore pitches a business proposition; a flight attendant and her husband present their unique portable child's seat.

Children seek a backer for an idea spawned during a family trip; the sharks fight for a piece of a mother's furniture business; a personal trainer thinks he has the next trend in fitness equipment.

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.

The exploits of two sisters with a children's dance company shock the sharks; a chef creates tasty seafood products; a winemaker has a game-changing product; an entrepreneur has a line of men's magnetic collar-stays.