Divya tries to get Hank and Evan to reconcile and not split up HankMed, but is it too late? Meanwhile, Hank and Divya help a pair of competitive eaters, one of whom is Jill's brother.
When Jill's nephew gets in trouble at chess camp, Hank thinks there may be a hidden medical condition causing it. Divya tries to reconcile her splintered family, and Evan meets a young heiress.
Hank and Evan's father returns to the Hamptons to bring the family back together. Divya reconnects with her mother. Evan meets a brilliant scientist with a checkered past while Hank treats a pair of young fund-raisers.
Evan has difficulty managing HankMed. Hank treats a matchmaker who wants to set up both Divya and him. Boris takes steps to protect his family, and Paige's party gets out of control.
While treating a Russian businessman, Hank becomes attracted to his interpreter, Evan and Dr. Sacani treat a man who falls sick after going into space, and Divya tries to reconcile with her father.
Evan and Paige comfort a close friend experiencing a painful loss. Hank and Divya treat an overweight veterinarian who is in the middle of a divorce, and a person attending a secret meeting at Boris' mansion falls ill.
Hank has difficulty convincing an ill polo player to give up the sport. Evan panics over his father meeting Paige's family, and Divya tries dating again.
Divya's new boyfriend asks Dr. Sacani for help. Evan helps Paige deal with a family problem. Hank treats an uptight student and her novelist mother, who have both fallen ill.
It's the holidays in the Hamptons! But an impending blizzard may derail Evan and Paige's wedding plans. Also, someone takes a big gamble on the future and a face from Hank's past triggers memories for Hank and Evan.