London's Major Trauma System springs into action when a fairground ride malfunction in Brockwell Park results in multiple critically injured patients.
A life-threatening head injury from an assault and an open leg fracture from a motorcycle accident both require urgent surgery to prevent the worst.
As the surgical teams discuss options, the air ambulance rushes to help a patient who has been diagnosed with a polytrauma - the worst level of injury.
The operations unit dispatches an ambulance for a construction worker who sustained a laceration to his wrist after falling through a pane of glass.
The family of an assault victim wrestles with how much trauma has altered his personality after the critical care team wakes him from his coma.
A team of orthopedic surgeons prepares for a high-risk pelvic surgery, where any margin of error could cause permanent nerve damage.
