The incredible moment when a six-year-old boy came to his collapsed mum's rescue by flagging down a passing Amazon delivery driver has been captured on video. 

Liz Crooks, a mother-of-three, became unwell when she was home alone and passed out - prompting her son Aidan to spring into action and seek help from a friendly passerby who wasted no time in coming to her aid. 

Liz spoke to Andrea about the incident..