Stacey visits a wealthy family in their manor house in the Warwickshire countryside, challenging their views on privilege, inherited wealth and private education.

Stacey visits Thomas and Cathy, who have an open marriage and live a polyamorous life, sharing their home with Nicole, who is a part of their relationship.

Stacey travels to Preston to spend time with a family who have encouraged their teenage son, Kyle, in his amateur career as an MMA cage fighter since the age of four. Kyle is now 14 and home schooled, so he can concentrate on his fighting. Stacey goes to watch Kyle in a big cage fighting competition - where he will be fighting in front of a large crowd - to see if he has what it takes to be a champion and Stacey questions whether it is right to put your child in the cage.

Felipe and Lillian have created a home life that follows the extremely traditional lifestyle or 'tradlife'. Putting her career ambitions to one side, Lillian has become part of a growing movement of 'tradwives' - meaning she prefers to take a submissive role in her marriage to husband Felipe. As head of the household, Felipe is responsible for providing all the family income; while Lillian's role is to be a 1950s-style housewife, cooking, cleaning, ironing, home-educating their two young children and deferring to "the boss" in all decisions.

Professional model Keisha and Nigerian millionaire Kunle have two children together. Their youngest, Dior, is the epitome of a star of the future; forthright, articulate and bubbly. This young girl is following in her mother's footsteps and is already well on the way to becoming a successful model - a career path she first embarked on when she was still only three years old.

Rabbi Mordechai and his American-born wife Blima are parents of nine children, aged between one and 16. As members of the Hasidic Jewish movement, Chabad, they live a strictly Orthodox Jewish lifestyle at home, adhering scrupulously to ancient rules covering everything from diet to marital relations. But theirs isn't an inward-looking or isolated life: Mordechai ministers to a congregation of 800 families across the community with various levels of observance.