>> if you are outdoors, seek immediate shelter. >> reporter: terrified residents running for shelter. a desperate father dropping his daughter down a manhole for protection. hawaii's emergency management initially blaming that worker for pushing the wrong button, but investigators now say he believed there was a missile heading for hawaii. the colossal mistakes began when a supervisor conducted a no-notice ballistic missile defense drill. the supervisor plays a recording over the phone which says, "exercise, exercise, exercise," but also includes the language, "this is not a drill." while five others listening on speaker understand it was an exercise, investigators say that worker thinks it is real, sending the alert. >> he froze and another employee had to take over his responsibilities. >> reporter: so, for 38 minutes, the panic continues until they