Leon has been in a head-on collision with a car. Graham has injured himself playing rugby and lost feeling in his arms and legs. Elliott, who's four, has got a foreign object stuck up his nose.

Zach, who's 25, is rushed to A&E after completely severing four fingers in a building site accident. A&E staff and plastic surgeons work hard to assess the damage and stem the extremely bloody wound. Zach and his girlfriend Betsy wait anxiously to find out if his fingers can be re-attached. Former teacher Ricky, who's 85, has hurt her back after falling at home, and 10-year-old Daquon was hit by a motorbike when he was on his way to school. He has memory loss and a badly broken arm.