From Here to Paternity

S13 E17: Abby and Pratt race to save a family that got stranded in the snow and is now suffering from frostbite. Meanwhile, Neela gets jealous when Dubenko (recurring guest star Leland Orser) brings in a new surgical intern. And Gates struggles with the reappearance of his father, Mike (recurring guest star Stacy Keach - "Prison Break"), and the possibility of losing the deceased Meg's daughter, Sarah (recurring guest star Chloe Greenfield).