An adrenaline-fuelled jump from a bridge goes terribly wrong, sparking a multi-agency rescue to retrieve an injured woman from icy water. And two young siblings bravely call 999 after their mum has a seizure that leaves her injured and confused.

Every parent's worst nightmare – a toddler stops breathing and dad has to perform CPR with help from a 999 call handler. And emergency services rush to the aid of a retired father of three who has crash-landed his light aircraft in a field.