A young man is thrown from his motorbike, hitting his head hard on a tree stump. His father dials 999, and an air ambulance crew races to the scene. Elsewhere, tension mounts when the crew aboard a British yacht are surrounded by a pod of killer whales.

Three siblings battle to save the life of their father, who has suffered a heart attack in the garden. A rally cross driver and his navigator have a lucky escape when their rally car barrel-rolls after taking off from a jump at high speed.