This special features patients whose visions of the world are rocked by life-changing events. Sergio, who's 44, and Alan, who's 71, have both been badly injured in cycling accidents.
Four-year-old Milly has fallen on her face. Ten-year-old Ryan has fallen and badly damaged his spleen. Maureen, who has multiple system atrophy, is struggling to breathe through her tracheostomy.
Katrina has injured her knee. Mark, who sustained brain damage in his twenties, is struggling to breathe. Three-year-old Thomas, who was born with a rare blood condition, has a high temperature.
This special features people who've faced challenges and transformed their lives. Nicole was born a man and used to be a pop star. She's burnt her foot with caustic soda.
Paul has been in a collision with a van. Four-year-old Jeremy is struggling to breathe; he has a series of chronic conditions including microcephaly and epilepsy.