This is a story about you. A tale about the inside of your body... According to a new study, the human body consists of approximately 37 trillion cells. These cells are hard at work every day within a world that is your body. From the oxygen-carrying red blood cells to the bacteria-fighting white blood cells, get to know the unsung heroes and the drama that unfolds inside of you! It's the oddly relatable and interesting story that is the life of cells!

Alcohol, smoking, and stress—in the body subjected to these irritants, the cells responsible for maintaining life seem to fight a war that never ends. Due to a severe shortage of workers, Red Blood Cell AA2153 has to quickly learn to deliver oxygen and collect carbon dioxide, even in dangerous conditions. Meanwhile, White Blood Cell U-1196 has to do her part by dealing with germs and viruses during life-threatening situations. In the midst of these crises, they have to work together to keep the body healthy, despite not knowing if their sacrifices will be worthwhile. Cells at Work! Code Black takes a different approach by showing the grittier side of the jobs our cells perform.

The theatrical episode will cover events from the fifth volume of the manga.

Meet the smallest heroes ever to grace the silver screen... the cells within us! The human body is home to an astonishing 37 trillion cells. Red blood cells tirelessly transport oxygen, white blood cells valiantly defend against bacteria, and countless other cells work around the clock to keep you healthy and alive. Witness the most epic battle ever fought within the human body!