Radek Lord

Conrad must diagnose a young woman who gets admitted after having extreme night terrors. Devon faces his first Halloween in the emergency room. Nic panics over her decision to bring her newly sober sister to Mina's epic annual Halloween party.

Devon's doubts about his relationship reach a peak as his friends and family gather for his big wedding day; as Chastain's medical device company continues to succeed, Julian makes a discovery that leaves her uneasy about her involvement in it.

When a police officer brings in an injured criminal, the staff must keep him alive. Nic gets roped into a surgical rotation with Cain that leaves her questioning the way he operates.

Relatives of Lane Hunter's victims are outraged when she is freed from jail, while Bell is angry at how he let himself be manipulated.

A nasty flu season is masking a terribly infectious disease, Chastain must race to quarantine and diagnose infected patients, Devon treats a lovesick patient with flu-like symptoms and Conrad doubts whether Nic is prepared to take the next step.

After a plane crashes in Atlanta, Devon is overcome by guilt at the thought that he could have prevented the tragedy.