<Li> Sarah Jane Morris as Annie Callahan </Li> <Li> Rob Estes as Colonel Parnell </Li> <Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> US viewers (millions) </Th> </Tr> <Tr> <Th> 36 </Th> <Td> </Td> <Td> "Recoil" </Td> <Td> Marisol Adler </Td> <Td> Brian Anthony </Td> <Td> June 22, 2017 (2017 - 06 - 22) </Td> <Td> 3.59 </Td> </Tr> <Tr> <Td_colspan="7"> After an explosion, TC finds himself in Syria . He meets a local doctor, Amira, and deals with finding Syd who has been kidnapped by the rebels . In San Antonio, Julian threatens to close off the E.R. due to its costs . Jordan and Drew narrowly rescue Mac from the mountain fire, and Jordan and Julian blackmail each other for his treatment . They finally reach a deal: all personnel will return to their jobs, with Jordan as head, and the hospital will work treating vets for the DOD to balance costs . Meanwhile, Paul deals with the fallout from he and Topher being fired by his father, Julian, and Kenny butts heads with Cain Diaz (Mark Consuelos), a new traveling nurse, when treating a patient who overdosed on PCP and swears he didn't take it . Cain is the only who believes him, and turns out he was dosed by his neighbour . </Td> </Tr> <Tr> <Th> 37 </Th> <Td> </Td> <Td> "Off the Rails" </Td> <Td> Oz Scott </Td> <Td> Tom Garrigus </Td> <Td> June 29, 2017 (2017 - 06 - 29) </Td> <Td> 4.15 </Td> </Tr> <Tr> <Td_colspan="7"> Following on from the last episode, Drew and Paul tend to a roller coaster accident and soon discover that one of the victims is pregnant, despite having gotten an abortion, while the other has taken cocaine . Drew bonds with the victim's mother, who is also a soldier . Meanwhile, TC continues his quest to save Syd, and Jordan tries to get along with Julian while also trying to get Paul reinstated . She finally tricks him into returning and he deals a truce with his father . After saving Syd, TC decides to stay in Syria to help . Shannon discovers that nurse Cain was a doctor in Mexico and Jordan, after being forced to fire him for overstepping his duties as a nurse, hires him as a resident doctor . Scott finds a way to keep Julian happy while returning the hospital to some kind of normalcy . Later on, Jordan receives shocking news about Topher: he and his daughter were killed in a car accident . </Td> </Tr> <Tr> <Th> 38 </Th> <Td> </Td> <Td> "Do No Harm" </Td> <Td> Marisol Adler </Td> <Td> Milla Bell - Hart </Td> <Td> July 6, 2017 (2017 - 07 - 06) </Td> <Td> 4.24 </Td> </Tr> <Tr> <Td_colspan="7"> Everyone grieves the loss of Topher . TC goes to extreme measures when treating a Syrian child, butting heads with Amira in the process . Jordan and Cain go out to a mine accident, and Jordan adjusts to her professional relationship with him . Meanwhile, Drew, Scott and Paul struggle to treat a patient with multiple symptoms, who may lose a hand, until they finally discover the cause to be lead poisoning . Also, Scott receives a surprise visit from ex-girlfriend Annie (guest star Sarah Jane Morris), when she brings in a patient who used to be Scott's Alcoholics Anonymous sponsor, helping them make peace . After patching things up with Scott and Jordan, she goes on a hike, where she jumps off a bridge into a flowing creek with a hiking bag full of rocks strapped to her back . The result of Annie's suicide attempt is not shown before then end of the 4th, and final, season of the show . </Td> </Tr> <Tr> <Th> 39 </Th> <Td> </Td> <Td> "Control" </Td> <Td> Oz Scott </Td> <Td> Joe Hortua </Td> <Td> July 13, 2017 (2017 - 07 - 13) </Td> <Td> 4.41 </Td> </Tr> <Tr> <Td_colspan="7"> Scott attempts to treat a young patient with a large facial tumor, but the patient's grandfather--a devout Jehovah's Witness--refuses to allow her to have surgery . She cuts herself to force the surgery, but in the OR things get complicated quickly, and only Scott's persistence saves her . Drew struggles with the demands of being a new parent while also dealing with a patient who provided false information . He turns out to be an actor working for a customer's service evaluation company, but he later helps Drew reconnect with his mother . Meanwhile, TC joins a rescue mission in Syria, with one soldier missing as a result of the information given by the mother of his previous patient; Jordan and Cain try to help a wounded veteran come to terms with Post Traumatic Stress Disorder with Mac's help . </Td> </Tr> <Tr> <Th> 40 </Th> <Td> 5 </Td> <Td> "Turbulence" </Td> <Td> Timothy Busfield </Td> <Td> Alan McElroy </Td> <Td> July 20, 2017 (2017 - 07 - 20) </Td> <Td> 4.23 </Td> </Tr> <Tr> <Td_colspan="7"> While on a flight home with his mom and Rick (guest star Luke MacFarlane), Drew deals with a plane full of sick passengers and a pregnant woman needing an emergency C - section . Meanwhile, Jordan, Shannon, Paul and Kenny compete against the staff of other hospital shifts at a charity' Ninja Warrior' challenge . Also, TC performs a dangerous surgery to remove a live bomb from a soldier . </Td> </Tr> <Tr> <Th> 41 </Th> <Td> 6 </Td> <Td> "Family Matters" </Td> <Td> Eoin Macken </Td> <Td> Tom Garrigus </Td> <Td> July 27, 2017 (2017 - 07 - 27) </Td> <Td> 4.45 </Td> </Tr> <Tr> <Td_colspan="7"> Kenny's career is put on the line when he participates in one of Drew's MMA classes and severely injures his spine . Mac defends the ex-soldier who caused the injury, while Drew digs deeper and finds out the truth about the ex-soldier's past . Jordan and Cain treat victims from a hotel fire, and Shannon bonds with one of the victims who has a mysterious past . Meanwhile, Paul's urologist sister, Dr. Bella Cummings, visits the hospital, and TC returns home from Syria to handle some of Topher's legal affairs . </Td> </Tr> <Tr> <Th> 42 </Th> <Td> 7 </Td> <Td> "Keep the Faith" </Td> <Td> Timothy Busfield </Td> <Td> Brian Anthony </Td> <Td> August 10, 2017 (2017 - 08 - 10) </Td> <Td> 3.09 </Td> </Tr> <Tr> <Td_colspan="7"> <P> Following a protest at Mac's funeral, a fight breaks out outside and injures several veterans, sending them to San Antonio Memorial . TC, Scott and Drew disagree on how to treat a U.S. Senator who is also an Army Veteran . TC and Drew later discover that the Senator has not been entirely truthful . Meanwhile, Shannon and Paul deal with a patient struggling with PTSD and later, Jordan confronts TC about whether or not he is back for good . </P> This episode - written and directed by, and guest starring real veterans - was dedicated to all the United States Armed Forces . </Td> </Tr> <Tr> <Th> 43 </Th> <Td> 8 </Td> <Td> "R3B0OT" </Td> <Td> Terrell Clegg </Td> <Td> Tom Garrigus & Shannon Sommers </Td> <Td> August 17, 2017 (2017 - 08 - 17) </Td> <Td> 3.52 </Td> </Tr> <Tr> <Td_colspan="7"> Chaos hits San Antonio Memorial when an expert criminal hacks into the hospital's computer system, shutting down the power, taking over computerized devices, and putting patients at risk while demanding a ransom . After receiving negative performance review comments from Jordan about her demeanor with patients, Shannon has to treat a returning patient whom she previously mouthed off to . Meanwhile, TC joins Rick on a ride - along, but is forced to think quickly on his feet when one of Rick's men is seriously wounded . Also, Paul is shocked to learn that his sister and Kenny are dating . </Td> </Tr> <Tr> <Th> 44 </Th> <Td> 9 </Td> <Td> "Land of the Free" </Td> <Td> Gabe Sachs </Td> <Td> Francesca Butler </Td> <Td> August 24, 2017 (2017 - 08 - 24) </Td> <Td> 3.72 </Td> </Tr> <Tr> <Td_colspan="7"> TC accompanies SWAT on a raid at an ICE detention center, where several of those deterred have become ill . He later discovers that one detainee has murderous intentions and escapes within the hospital . Kenny asks Paul for his sister's hand in marriage after only one month of dating . Meanwhile, Jordan receives shocking news that Cain fled town without notice . Also, Scott tries to keep a high profile to impress Colonel Parnell (Rob Estes) in his bid to get a Combat Medical Training Program in San Antonio . TC and Syd are expected to attend the presentation but Syd can't make it, so TC calls in Dr. Amira . </Td> </Tr> <Tr> <Th> 45 </Th> <Td> 10 </Td> <Td> "Resurgence" </Td> <Td> Jeff Judah </Td> <Td> Brian Anthony </Td> <Td> August 31, 2017 (2017 - 08 - 31) </Td> <Td> 3.08 </Td> </Tr> <Tr> <Td_colspan="7"> Scott begins a new training program with military members that all of the doctors take part in . Shannon and Paul discover a young girl with a rare heart disorder . A shooting at a nearby college sends the staff into panic mode . Jordan and Amira get caught by an armed protester, but are saved by Rick . Drew, TC, and a recruit deal with a college professor who is shot in the leg and has another underlying condition . Scott's new training program angers Julian, and also makes Shannon and Paul question their spots at the hospital . Amira confides to Jordan that her treatment is failing, and she and TC are returning to Syria . During Jordan's toast to Kenny and Bella at their engagement party, it's revealed that Shannon returns to her hometown clinic, while Amira returns to Syria--with Paul instead of TC . Drew attends Army Ranger school with Rick's blessing . His spot in the combat training program is replaced by TC, who tells Jordan he is not ready to leave . </Td> </Tr> </Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> US viewers (millions) </Th> </Tr>

The night shift season 4 when does tc come back