Jordan and Drew perform a daring rescue by jumping from a chopper; Paul deals with the repercussions of standing up to his father; Shannon indoctrinates Cain; TC must treat his captor to rescue Syd.

Drew is forced to re-evaluate his priorities as a new father; the ER is flooded with mass casualty victims from an amusement park disaster; Jordan helps appease Paul and his father; Scott pursues a more active role in the hospital.

Jordan and Cain figure out their professional dynamic; Drew and Paul must find a way to save a patient's severed hand; Annie shows up to the hospital with an unexpected guest from Scott's past; TC and Amira treat a Syrian child on the base.

When a patient from a distant town needs surgery, Scott is determined to help her; Jordan takes a creative approach to helping a wounded veteran; Drew finds support from an unusual patient; T.C. goes on a daring rescue mission in Syria.

Drew's flight home with his mother and Rick turns into a medical crisis; Jordan, Shannon, Kenny and Cain tackle an obstacle course fundraiser hosted by Akbar Gbajabiamila; Scott goes on a memorable date.

Kenny joins Drew at his MMA veteran's support group; Jordan and Cain treat casualties from a hotel fire; Shannon uses her instincts to help save a young victim.

When protesters injure veterans at a funeral, members of the night shift must treat them; disagreement erupts over how to care for a high-profile politician; a former POW and a fearless photographer require treatment.

Jordan realizes the hospital is under cyber attack; Drew must use his medical and military training to help a critical patient; TC contemplates returning to Syria to tie up loose ends.

T.C. and Jordan accompany a SWAT team on a raid and wind up with an emergency room full of sick immigrants; Scott pulls a team together to impress the colonel in charge of setting up a combat training program; more is learned about Cain's past.

A shooting at a nearby college sends night shift members into harm's way; Scott implements a new training program; Drew struggles with frustrations about going to Army Ranger School; Shannon and TC contemplate their future at San Antonio Memorial.