Three Birds and a Baby

S1 E4: When Helena rescues an abandoned baby boy, Elliott, and brings him back to the clock tower, Barbara and Dinah try to help. However, to everyone's surprise, the baby is only happy when Helena is holding him. Even more astounding is the fact that Elliott wakes from his nap as a walking, talking 5-year-old and is soon a teenager (Riley Smith). Now in a race against time, the women discover that Elliott is programmed to live his entire life in three days--and to kill the first person he becomes attached to, putting Helena in grave danger.