Maggie Yang treats a female blues singer for a condition that could end her career; a patient with ""wings"" seems to have the power to heal other patients by his touch; and a beloved hospital volunteer is in critical condition after being shot by burglars. Meanwhile, when a patient is caught smoking a marijuana cigarette, Nurse Poole is determined to find the source; the hospital brass search for an escaped monkey; and Dalgety performs an unauthorized surgery on an illegal alien who could be deported if caught.