Casualties of a disaster flood the ER, which is short-handed because everyone is at Dr. Carter’s going-away party because he’s leaving the ER after 11 years. Dr. Pratt looks for…

Much to Ray’s dislike, a surrogate mother in labor doesn’t want to have a C-section and endangers the life of the baby. Meanwhile, Sam tells Luka she and Alex are…

Sam and Luka go on the search for her runaway son, Alex. Meanwhile, Pratt and Lewis guide Abby, Neela and Ray, who have become R2’s, on how to teach the…

When a perfect girl finally shows up, the gang tries everything to help Ted, while Marshall takes action when he discovers a letter written by younger himself.