Arden Cho

Everyone has a secret in Rosewood and it's only a matter of time before it is revealed. Four girls know this to be especially true and are reminded of it on a daily basis. As the police turn up the heat and make Spencer an official "person of interest," maybe the girls should take a closer look at those around them. The boy one has given her heart to may have ulterior motives; the girl they have wronged may not be as innocent as they think; and the person another likes may make a rash decision that cuts to the bone. All are things that the girls should take into account ... before "A" does. Meanwhile, Ella and Byron try to decide what the latest development in their relationship means for them and their family.

Upon hearing news of a pregnant teen, Dr. Manning (Torrey DeVitto) and Dr. Choi (Brian Tee) venture to a homeless encampment to help deliver a baby under dire circumstances. Dr. Rhodes (Colin Donnell) and Dr. Bekker (Norma Kuhling) argue about the best way to treat a young boy with a chronic disease. Dr. Halstead (Nick Gehlfuss) and April (Yaya DaCosta) are put in an uncomfortable situation when they find out their patient is a pedophile. Goodwin (S. Epatha Merkerson) and Maggie (Marlyne Barrett) have to deal with a lawsuit against the hospital. Dr. Charles (Oliver Platt) learns of important news pertaining to Dr. Reese's (Rachel DiPillo) father (guest star Michel Gill).

When a mother makes a decision regarding care of her vegetative adult son, Dr. Halstead and Dr. Manning find themselves at odds. Dr. Rhodes goes behind Dr. Bekker's back to figure out a way to get his patient at the top of the transplant list. Dr. Choi is at a loss when a woman in the waiting room falls asleep and won't wake up.

After a shooting occurs during a block party at a local park, Med is overrun with victims that stretch the hospital and staff to its limits. In the midst of the chaos, Dr. Choi devises a new mass casualty plan on the fly and Dr. Manning struggles to stay focused when she realizes her son and nanny might have been at the scene.

Dr. Charles and Dr. Reese search for answers when a mother brings in her daughter claiming she is possessed. Dr. Rhodes and Dr. Bekker are tasked with finding a way to save a pair of conjoined twins. Dr. Halstead struggles to get Dr. Manning's attention. Maggie measures her options in the wake of her recent actions.