A Boy Falling Out of the Sky
Carter comes to the rescue when the stalled search for Abby's brother---and the arrival of her mother (Sally Field)---pushes the nurse to her limit. Meanwhile, Kovac comes back to work just in time to save an overdose case from frying his own brain; and Pratt digs himself into a deeper hole with Chen (Ming-Na) during his stint with the EMTs. Pratt: Mekhi Phifer. Lopez: Lisa Vidal. Lewis: Sherry Stringfield.