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!
A cell’s job is never done! Between fighting off respiratory infections, dengue fever, and a serious case of hemorrhagic shock, Red Blood Cell and White Blood Cell have been working harder than ever to protect the body from bacteria and diseases. But with new challenges comes new allies, and it's up to all the cells to come together to keep the body—their home—safe from harm.