NBC’s “Chicago Med” premiered an intense Season 2 episode in which Dr. Connor Rhodes and Dr. Natalie Manning each treated a sick baby at the same time. Episode 2 also saw Manning enjoying her time with medical student Jeff Clarke after wrestling with the ethical and moral dilemmas of the case.

Meanwhile, Nurse April (Yaya DaCosta) received a marriage proposal from her boyfriend Tate. He also suggested that she quit her job after the wedding. Ouch.

What will happen in episode 3? Rhodes (Colin Donnell) will take on a very complicated case without consulting his new and challenging mentor, Dr. Latham (Ato Essandoh). The preview of Season 2, episode 3, titled “Natural History,” indicates that Rhodes’ new patient has a very complicated heart condition. Worse still, the patient is Glenn Simon and he’s a high profile individual with numerous connections.

Sharon Goodwin (S. Epatha Merkerson) warns Rhodes not to mess this up in the episode, because if he does, he will have a lot to worry about.

The official synopsis of “Natural History” on NBC states that the upcoming episode of “Chicago Med” will see Manning (Torrey DeVitto) and fourth year medical student Clarke (Torrey DeVitto) trying to figure out what illness afflicts an Indonesian man. The case gets complex when the duo learn that their patient doesn’t speak English and arrives at the hospital in dire straights.

Episode 3 will also show Dr. Halstead (Nick Gehlfuss) attending Maggie’s (Marlyne Barrett) family reunion. There he meets her sibling, Denise (Alexandra Grey) and uncovers a deep rooted family secret.

Elsewhere in the hospital, Dr. Daniel Charles (Oliver Platt) and his psych resident Dr. Sarah Reese (Rachel DiPillo) encounter a woman experiencing an unusual pregnancy.

“Chicago Med” Season 2, episode 3 premieres on Thursday, Oct. 6 at 9 p.m. EDT on NBC.

Chicago Med Dr. Rhodes performs a time-sensitive and complicated surgery while Dr. Manning and Jeff Clarke try to diagnose a mysterious illness in “Chicago Med” Season 2, episode 3. Catch the episode on Thursday, Oct. 6 at 9 p.m. EDT on NBC. Photo: Matt Dinerstein/NBC