The DengineersSeason 52019 · 15 episodesEpisodes1The Black History DenTwelve-year-old Luke is passionate about black history and wants people to realise how important it is.2Conservation DenTen-year-old Caitlin wants to become a conservationist when she's older. She is passionate about teaching other people how important our world is, and needs a den where she can research.3Underwater Den11-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.4Amazonian DenEight-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.5Chinchilla DenBecca and her twin brother, Charlie, loved their new chinchillas. However, one of them was pregnant and gave birth and the only way to save them from being rehomed is to have a chinchilla den.6Opera House DenTwelve-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.7Japanese DenEight-year-old Mei is half Japanese and loves learning more about Japan's culture. She doesn't get to visit as often as she would like so needs a den where she can celebrate her Japanese heritage.8Crazy Golf DenNine-year-old Jothi had an illness as a baby that caused his legs to not grow properly, meaning he can't visit his favourite crazy golf course. Jothi needs a crazy golf den he can access all the time.9Zen Den11-year-old Holly has chronic actinic dermatitis, eczema caused by UV light, and needs a calm and relaxing den to help forget about it.10Funfair DenTen-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.11Board Games DenEight-year-old Matthew needs a den so he can teach his sister the board games he has grown to love.12Bug DenTen-year-old twins Becca and Lottie need a den so they can enjoy wildlife and bugs together. Becca has cerebral palsy and her wheelchair makes it difficult to play in the garden with her sister.13HighlightsJoe 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.14Revisit 1Joe 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.15Revisit 2Joe revisits the Queen Victoria, Australia, Sewing and Army Coding Dens.Season 1Season 2Season 3Season 4Season 6Season 7