4Seven

A 23-year-old woman has fallen off her horse, which then rolled on top of her. Doctors urgently need to determine if a 26-year-old man is having a stroke. And a five-year-old boy has badly cut his hand at school.

Sara is rushed in after a serious car crash. Simon fell off his bike on his way to buy a helmet. And Chris has brought in his 16-year-old son James, who severed his finger climbing a fence.