Episode 1
David, who is 69, is rushed to A&E with severe leg pain and a pale foot. Annie has been struggling to breathe.
Episode 2
Sergio, who's 44 and Alan, who's 71, have both been badly injured in cycling accidents.
Episode 3
4-year-old Milly has fallen on her face. 10-year-old Ryan has fallen and badly damaged his spleen. Maureen, who has multiple system atrophy, is struggling to breathe through her tracheostomy.
Episode 4
Katrina, 26, has injured her knee. Mark, who is 35 and sustained brain damage in his twenties, is struggling to breathe. 3-year-old Thomas, who was born with a rare blood condition, has a high temperature.
Episode 5
Richard has come to A&E with sore joints. Stanlie is airlifted to hospital after being impaled on a metal rod. Max and his 2-year-old daughter Darcy have been involved in a bus collision.
Episode 6
Nicole has burnt her foot with caustic soda. Francis, 28, fell off his bike and is suffering amnesia.
Episode 7
Dave, who is 56 and a builder, has fallen 15 feet from a ladder onto concrete. 26-year-old Finn has been hit by a car while he was out jogging. 3-year-old Alf has also been hit by a car while waiting to cross the road.
Episode 8
Paul, 60, has been in a collision with a van. Jeremy, who is 4 and has a series of chronic conditions including microcephaly and epilepsy, is struggling to breathe.