The Undateables - Season 4

Return of the documentary following people with a range of restrictive conditions as they search for romance. Alex, 21, is extremely nervous around new people because of his autism, and has never been on a date. Passionate about fast cars, he decides to take Eloise to a race at Brands Hatch. Professional artist's model Matthew, 31, feels his stammer has hindered his success in love, while 27-year-old Daniella has Apert syndrome, a rare genetic condition that means she was born with the bones in her hands, feet and skull fused together. Could her first-ever date lead to a relationship?

The experiences of 35-year-old Tim, who has a mild learning disability and has wanted to marry for many years. When he meets Laura, 27, will he reveal he's already planned every detail of his wedding day? Essex boy Ali has achondroplasia, the most common form of dwarfism, and at 4ft 2, the 22-year-old is used to being the centre of attention on a night out, yet has never had a girlfriend. When he meets Kirsty, his nerves threaten to get the better of him and ruin the date. Finally, 27-year-old raver Alec has Saethre-Chotzen syndrome, a rare genetic condition characterised by the fusion of cranial features. Too nervous to approach girls himself, he turns to a dating agency for help and before long plans are made for him to meet research scientist Charlie.

Richard, who has Asperger syndrome, has high hopes for his posh afternoon tea at a five star hotel with Tammy, while Chris, paralysed from the chest down, longs to find lasting love

The show catches up with Ruth, Daniel and Michael as they continue their quest to find love. Daniel, who has autism, goes on a bowling date with Charley, and Ruth meets comedian Nathalie

This special episode follows some success stories from previous shows, as Brent and Steve plan to pop the question to their girlfriends and Carolyne prepares to become a mum