A mother and her two young sons have just returned home from the park when a huge gas explosion rips through their house with them inside.
Also, a runaway bin lorry, with no driver at the wheel, heads down a hill towards other vehicles and into the path of a pedestrian walking her dogs.

A mum spectating at a go-kart race doesn't immediately realise that it is her son who has had a bad crash on a bend. Elsewhere, a father calls the coastguard as he is stuck fast on mudflats with his son, and the tide is rising. A specialist rescue team is scrambled to the scene.