This week: As the rumor mill heats up, Abby reveals to the rest of the ER where she's been the last few weeks, Julia wants to get more serious with Gates, Pratt steps up to lead the team as Skye is out sick, a fire in an apartment building sends multiple foster children to the hospital, Neela has an unconventional first day in orthopedics, Morris has food poisoning, and a disfigured man saves his neighbour after she's been badly beaten.