The series follows high school student Casey Ryder, the daughter of the only superhero in the world, Invulnerable. He’s beloved by many for his heroics, but Casey knows her father’s true colors. Invulnerable left his family to become a full time superhero when Casey was a young girl, and things get really complicated when Casey inherits her father’s abilities. What does she do with the very powers that made her father leave her family?