Ambulance: Code Red S04E08 - Episode 8

At Reading Services on the M4, 72-year-old retired college lecturer Steve steps out of his car and suffers a cardiac arrest. Dr Laura Douglas Beveridge and critical care paramedic Hannah Hirst rush to the scene. Elsewhere, a car rolls down a motorway verge, leaving both the driver and passenger critically injured. Critical care paramedic Barry Walsh and Dr Henry Knott are despatched.