Orangutan Den. Duncan from Glasgow is passionate about protecting orangutans. He needs a den where he can learn more about these primates and how to help them, and share his passion with friends. [S]
Science Den. Zoe from Oxfordshire is mad about science and desperately wants a den where she can pursue her passions and carry out noisy, messy experiments whenever she wants! [S]
Rollercoaster Den. Keir from Rugby is a massive fan of rollercoasters. He wants a den where he can celebrate his passion, design his own coasters, and share his love of rides with friends. [S]
Army Coding Den. Eleven-year-old Yusuf dreams of being in the army and hopes to one day to use his love of computer coding to become an army intelligence officer. [S]
Tap Dance Den. Angel from London is a top tap dancer who needs a space of her own where she can train properly, store her costumes and display all of her medals. [S]
Shakespeare Den. History buff Hector from Wigan is a huge fan of William Shakespeare. He needs a space of his own where he can enjoy his hero's works and write plays. [S]
Optical Illusion Den. Siblings Nethuni and Abheetha are obsessed with optical illusions and want a den where they can work together to create new tricks to dazzle their friends. [S]
Sausage Dog Den. Bea from Hull and her best friend Stanley the sausage dog are seriously short of space. They need a den where they can learn new tricks and hang out together. [S]
Science Den. Zoe from Oxfordshire is mad about science and desperately wants a den where she can pursue her passions and carry out noisy, messy experiments whenever she wants! [S]
Orangutan Den. Duncan from Glasgow is passionate about protecting orangutans. He needs a den where he can learn more about these primates and how to help them, and share his passion with friends. [S]
Tap Dance Den. Angel from London is a top tap dancer who needs a space of her own where she can train properly, store her costumes and display all of her medals. [S]
Christmas Den. Joe and Lauren get the help of experts to design dream dens for children. Astrid needs a Christmas den so she can enjoy that special day all year round. [S,SL]
Shakespeare Den. History buff Hector from Wigan is a huge fan of William Shakespeare. He needs a space of his own where he can enjoy his hero's works and write plays. [S]
Optical Illusion Den. Siblings Nethuni and Abheetha are obsessed with optical illusions and want a den where they can work together to create new tricks to dazzle their friends. [S]
Sausage Dog Den. Bea from Hull and her best friend Stanley the sausage dog are seriously short of space. They need a den where they can learn new tricks and hang out together. [S]
Strictly Come Dancing Den. Ballroom dancer Harry from Dudley is a huge fan of Strictly and wants a den full of glitz and glamour to help him practise his dancing and store his trophies! [S]
Revisits 2. Joe and Meryl take a look back at some of the amazing dens from past series and catch up with some of our Dengineers to see how the dens have changed their lives. [S]
Revisits 1. Joe and Meryl take a look back at some of the amazing dens from past series and catch up with some of our Dengineers to see how the dens have changed their lives. [S]
Ancient Egyptian Den. Lydia from County Durham is passionate about the ancient Egyptians and wants an appropriately themed den where she can learn more about this fascinating period from the past. [S]
Lucky Cat Den. Ollie wants a lucky cat-themed den where he can relax, hang out with his favourite feline Graham and work on his very own comic stories. [S]
Christmas Den. Joe and Lauren get the help of experts to design dream dens for children. Astrid needs a Christmas den so she can enjoy that special day all year round. [S]
Illustration Den. Stan from Cumbria is a talented artist and a huge fan of comics. However, he has nowhere to draw and needs a den to work on his illustrations and display his art. [S]
Beach Den. Twelve-year-old Annabell loves the seaside but lives in Milton Keynes, miles from the coast. She would like her very own beach den where she can spend time with friends and relax. [S]
Weather Den. Amayah from Sheffield is a huge fan of the weather and dreams of becoming a forecaster. She wants a den where she can study the weather and create her very own forecasts. [S]
Bagpipe Den. Gregor from Aberdeenshire needs somewhere to practise, store and maintain his bagpipes. He dreams of becoming a professional, but his pipes are too loud for the rest of the family. [S]
Revisit 1. Joe and Meryl look back at some of the amazing dens from this series and catch up with our Dengineers to see how the dens have changed their lives. [S]
Highlights. Joe and Meryl look back at all the amazing dens built throughout the series and reminisce about the great kids, the tense surprises and the big reveals. [S]
Funfair Den. Ten-year-old Evie wants a den where she can spend quality time with her aunt, whose chronic rheumatoid arthritis means she is unable to get up the stairs to Evie's room. [S]
Opera House Den. Twelve-year-old Ashley needs an opera-themed den so he can sing to his heart's content. He has Tourette syndrome and singing helps him to overcome it. [S]
Amazonian Den. Eight-year-old Nathan loves learning all about the rainforest from his dad and wants a den so he can feel like he is deep in the Amazonian rainforest every day. [S]
Underwater Den. 11-year-old Maariya was scared of going underwater but overcame her fear a few years ago. Now she loves swimming, snorkelling and all things underwater. [S]
Revisits One. The presenters look back at some of our dens from previous series and catch up with our dengineers to see how the dens have changed their lives. [S]
Highlights. The presenters look back at all the amazing dens the team have built throughout the series and reminisce about the great kids, the tense surprises and the big reveals. [S]
Community Den. The Dengineers help St Hugh of Lincoln Primary School in Manchester create a new space for pupils with specific needs from an old double-decker bus. [S]
Cycling Den. Experts design dream dens for children. Campbell needs a cycling den where he can cycle all over the world without getting oil on his parents' sofa. [S]
Magic Den. Experts design dream dens for children. Tali needs a magic den where she can practise her tricks in secret, without giving the game away. [S]
Sewing Den. Daisy loves sewing but has to pack everything away when it is dinner time. She needs a sewing den where she can create fabulous designs in peace. [S]
Politics Den. Jilan, 12, has a passion for politics and wants to be prime minister one day. She needs a Politics Den where she can plan her campaigns in peace and quiet! [S]
Sweetie Den. Cara, who has a form of dwarfism, has a sweet tooth and loves to dance. She needs a Sweetie Den where everything is the right height for her and she can disco dance! [S]