Helmet saves Chinese biker's life after he and his son were struck down by truck trailer's loose backdoor

CCTV video captured a father and a son on a scooter being struck down by the backdoor of a truck trailer in eastern China.

In the clip, shot in the city of Linhai in Zhejiang Province on November 17, the trailer door suddenly swung open, knocking over a biker and his son on a scooter.

The father and the son were sent to hospital. Since the father wore a helmet, he only suffered minor injuries. But the son had eyebrow bone fractures as he did not have a helmet during the incident.