In a series of escalating encounters, former security guard David Dunn uses his supernatural abilities to track Kevin Wendell Crumb, a disturbed man who has twenty-four personalities. Meanwhile, the shadowy presence of Elijah Price emerges as an orchestrator who holds secrets critical to both men. While David confronts Kevin, a group of armed men intervene. Now locked in a mental facility with Elijah, the two find their superhuman abilities being questioned by Ellie, a secretive psychiatrist.