Four mental patients on a field trip in New York City must save their caring chaperon, who ends up being taken to a hospital in a coma after accidentally witnessing a murder, before the kill... Read allFour mental patients on a field trip in New York City must save their caring chaperon, who ends up being taken to a hospital in a coma after accidentally witnessing a murder, before the killers can find him and finish the job.Four mental patients on a field trip in New York City must save their caring chaperon, who ends up being taken to a hospital in a coma after accidentally witnessing a murder, before the killers can find him and finish the job.