M. Night Shyamalan's superhero thriller and psychological horror series, centering around the character David Dunn.
In Philadelphia in 1961, Elijah Price is born with osteogenesis imperfecta#Type I osteogenesis imperfecta, a rare disease that renders sufferers' bones extremely fragile and prone to fracture. Elijah—who grows up to become a comic-book art dealer—develops a theory, based on the comics he has read during his many hospital stays, that if he represents extreme human frailty, there must be someone "unbreakable" at the opposite extreme.
Kevin Wendell Crumb, a man suffering from dissociative identity disorder or multiple personalities, finds himself at a crossroads when one of his personalities emerges to dominate the others into abducting three teenage girls, forcing Kevin to battle all the personalities in his mind.
It has been three weeks after an infamous crime spree by Kevin Wendell Crumb. Superhuman vigilante David Dunn and his now-grown son Joseph have been working together to take down criminals, with David. The pair set out to save four cheerleaders Kevin has abducted. Kevin's malignant psychopathic psyche is preparing to feed upon his captives until David encounters him outside in his in-control alter ego, "Hedwig".