Ripley and Charles treat members of a cult. Zola's suspension takes an unexpected toll on Crockett. Dr. Abrams' 5-month-old son lands in the E.D. under questionable circumstances.
Cooper and the Red Cell team try to stop a killer who disfigures his victims' faces.
Things are tense between Walker and Liam after Liam called in a false warrant on Dan Miller; Captain James informs the brothers that Serano's lawyers are using Liam's mistake as a way to set the criminal free.
When he hears that Serano is out on bail, Dan panics and asks Liam for help; Geri decides to have an open mic night at the Side Step and encourages August to hit the stage.
Maggie's budding romance takes flight; after a woman's shocking suicide attempt, Charles searches for answers; Asher works to diagnose a patient who is new to the city and appears with mysterious symptoms.