The activities of a multidisciplinary team of mental health professionals during their initial year of work to upgrade the mental health system in the English-speaking Caribbean nation of Grenada are described. Improvement of services at the island's only psychiatric hospital received top priority. The team belped Grenadian staff to sharpen basic techniques ofactive treatment, which included assessment of psychiatric symptoms, development of treatment plans, and intervention with patients. Maintenance of medical records was improved, procedures for medication and seclusion were standardized, weekly ward rounds were routinized, and regular staff meetings were urged. Among the obstacles faced by the team in implementing these changes were staffs delayed acceptance of col laborative interdisciplinary team work, as well as shortages of money and personnel.