Marcus Lemonis travels throughout California, where a new law will soon allow any adult to buy cannabis legally, and profiles several pot entrepreneurs, from small-scale startups to multi-million-dollar ventures.

Marcus Lemonis shares his top 10 most important rules for success while sharing key moments of past episodes.

A family-owned chocolate shop was started by three siblings in support of their chocolatier father; despite circumstances becoming desperate, the family is resistant to change.

Marcus helps a gelato popsicle company whose owner jumped the gun by starting a franchise business and now suffers from a waning work ethic.

Marcus helps a California entrepreneur who went all-in on a coffee business with no prior experience and got in over his head.

Marcus helps a sound-proofing company, started by two best friends, which has so little cash they must rely on unpaid volunteers.

Marcus helps a family-owned haircare company that is at a breaking point because of the father's costly side projects.

A Chicago snowboard shop goes downhill after its owners try to expand too quickly and stop communicating with one another.

A family-run swimwear company struggles to connect with consumers due to poor leadership, outdated designs and misguided processes.

Marcus helps a Manhattan-based fashion designer who is failing because she lets her family and co-workers overpower her.

Marcus teams up with George Lopez and the owner of a Mexican-American tortilla business to develop products and compete with big competitors.

Marcus Lemonis travels to Cuba at a time of historic change and profiles a new breed of business owners determined to succeed under one of the most oppressive regimes in the world.

A kitchen supply store in Manhatten faces extinction following the owner's divorce; Marcus tries to get them working together again.

A father and son with a broken relationship lead their tea shop into dangerous territory; Marcus attempts to have them separate their business and personal lives.

Marcus brings in another company to help a Los Angeles furniture company struggling with old inventory and quality control.

Marcus helps the owner of a cleaning product line who puts her own business at risk with aristocratic marketing, high prices and an unwillingness to face reality.

A Chicago catering company needs help after suffering a steep drop in sales and an owner who vents his frustration on the employees.

A charity-centric watch business suffers from a rushed process, unfocused branding and emotional baggage.

A Milwaukee-based chain of soup restaurants needs professional help after its co-owner's sudden passing.

A Los Angeles clothing brand suffers from its owner's inconsistent designs and wasteful spending, despite the help of his brother and sister.

Two business partners revived an iconic family restaurant chain, but they need the help of Marcus Lemonis to restore leadership.