How far would you go to save your child's life? It's a question that might leave non-parents feeling a little on the spot. But parents everywhere know exactly how they would answer: a parent will do anything and everything it takes to save their child. That's exactly what's brought one American mother from her family's home in California all the way to the other side of the world, to China. Her trip is a last ditch attempt to save her daughter's life, in the form of an extraordinary appeal for help to every one of China's 1.3 billion citizens.