Ozzy is an adventurous white blood cell; who keeps his host, Frank DeTorre from deadly viruses. However, Ozzy does not follow rules and orders as he tends to do things his own way. Despite his rebellious and reckless behavior, he is otherwise caring, friendly and forgiving. While he is a bit of narcissist and has an ego, he does not let it harden his heart, even the teasing he gets from his fellow cops or anyone who belittles him. He is tired of work but wants to save lives. Especially yours.