The Dengineers

Lauren revisits the survival art Hollywood cinema and DJ dens and finds out how they changed the lives of the young Dengineers.

Lauren revisits the train magical library community and plane dens and finds out how they changed the lives of the young Dengineers.

Helena is eleven years old wants to be an astrophysicist and needs a den to help her reach for the stars and fulfil her science dreams.

Twelve-year-old Will loves rugby but had to give it up to have chemotherapy. He needs a rugby den to keep him in the game!

Joe and Lauren help build a den for the children and their siblings at Claire House Children's Hospice in Liverpool.

Joe and Lauren help build a den for the children and their siblings at Claire House Children's Hospice in Liverpool.

Nine-year-old Ocean wants to be a rollercoaster designer and needs a marble run den where he can work towards achieving his dreams.

Astrid lives in one of the UK's most famous summer hot spots. She needs a Christmas den so she can enjoy that special day all year round.

Brothers Alec and William want a den to play in that looks like a traditional Scottish castle.

Nine-year-old Nya shares a room with her two-year-old brother. She needs her own space where she can practice martial arts.

Ten-year-old Dilara wants a Turkish den where she can share her passion for Turkey with her friends.

Kiran is a big fan of a certain boy wizard and needs a place where he can let his love of witchcraft and wizardry come to life.

Eleven-year-old Cammy is one of six siblings and has a sensory processing disorder. He needs a place where he can let his senses relax.

Nine-year-old Maddie needs a space of her own where she can focus on her sporty future.

The presenters look back at all the unique dens built throughout the series and reminisce about the great kids they've met.