It's not a true story. The plot and characters of The Last Radio Call are made up to captivate the audience and offer an engaging fictional experience.
The 'last radio call based on true story' might revolve around emergency services too. For instance, a firefighter could be trapped in a burning building and makes his last radio call for help or to convey important information about the situation inside. It could be a very emotional and intense story that shows the bravery and the difficult situations these real - life heroes face.
Hope could also be a theme. Despite being in a dire situation and making what might be their last radio call, they still have hope that someone will hear them and come to their aid. This hope might be reflected in their voice, their words, and their determination to get their message across even as their situation worsens.
I don't know the exact main plot as the title is not very specific. It could be about a heroic sacrifice where the last radio call was a way to convey important information before the end. Maybe a firefighter trapped in a burning building made the last radio call to inform about the situation inside.
I'm not sure. There's no clear information available indicating whether 'Last Call' is based on a true story or not. It could be a blend of both fact and fiction.