Strep throat! Hay fever! Influenza! The world is a dangerous place for a red blood cell just trying to get her deliveries finished. Fortunately, she's not alone...she's got a whole human body's worth of cells ready to help out! The mysterious white blood cell, the buff and brash killer T cell, the nerdy neuron, even the cute little platelets—everyone's got to come together if they want to keep you healthy!
Red Blood Cell and White Blood Cell somehow keep running into each other—could their bond have been fated since childhood? Either way, the body they live and work in can’t seem to catch a break. From food poisoning to heat exhaustion to the threat of cancer, life in the body is as busy as it is dangerous, but the hard-working cells that keep it (and you) running are up to the task!