<Tr> <Th> 8 </Th> <Td> 8 </Td> <Td> "Chapter Eight: The Upside Down" </Td> <Td> The Duffer Brothers </Td> <Td> Story by: Paul Dichter Teleplay by: The Duffer Brothers </Td> <Td> July 15, 2016 (2016 - 07 - 15) </Td> </Tr> <Tr> <Td_colspan="6"> Hopper gives up Eleven's location so that he and Joyce can enter the Upside Down . They find Will unconscious in the Upside - Down town library . They pull a tendril out of his throat, perform CPR, and revive him . Nancy and Jonathan booby - trap the Byers' home, then cut their hands to attract the monster with their blood . Steve arrives, intending to apologize to Jonathan about their fight, but the monster attacks . The monster springs the trap but escapes back to the Upside Down . Eleven and the boys hide in the middle school . Mike asks Eleven to a school dance, the Snow Ball, and kisses her . The military storms the school to re-capture Eleven, but she kills them and collapses . As Brenner cradles her, the monster attacks, apparently killing him . The boys hide Eleven in a classroom . The monster corners them, but Eleven pins it against a wall . She says goodbye to Mike, disintegrates the monster, and vanishes . Mike is devastated at her disappearance . Will is hospitalized and reunited with his mother, brother, and friends . Hopper is reluctantly picked up by a black car . One month later, Nancy and Steve are back together, and both are friends with Jonathan . Hopper leaves Eggo waffles and other food in a box in the woods . Will coughs up a slug - like creature and has a vision of the world as the Upside Down, but he hides this from his family . </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 release date </Th> </Tr> <Tr> <Th> 9 </Th> <Td> </Td> <Td> "Chapter One: MADMAX" </Td> <Td> The Duffer Brothers </Td> <Td> The Duffer Brothers </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> On October 28, 1984, Kali and her gang use her psychic powers to escape the police . Her wrist tattoo marks her as "008 ." At the Hawkins arcade, Will has a vision of the Upside Down . Murray Bauman describes an elaborate conspiracy theory to Hopper . Hopper investigates a blight on Bob Merril's pumpkin patch . Mr. Clarke introduces a new girl named Maxine ("Max") to his class . At Hawkins Lab, Owens examines Will . He tells Joyce that Will is experiencing posttraumatic stress disorder . Nancy and Steve have dinner with Barb's parents, who are selling their house to pay for Bauman's investigation into Barb's disappearance . Mike tries to contact with Eleven, still believing she is alive even 352 days after her disappearance . Dustin hears a noise from the trashcan outside his home, and Will has a vision of an enormous spidery creature in the Upside Down . Hopper goes home to a cabin in the woods, where Eleven, revealed to be alive, accuses him of being late . </Td> </Tr> <Tr> <Th> 10 </Th> <Td> </Td> <Td> "Chapter Two: Trick or Treat, Freak" </Td> <Td> The Duffer Brothers </Td> <Td> The Duffer Brothers </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> In a flashback, Eleven awakens in the Upside Down middle school, having just destroyed the monster at the end of the first season . After escaping the Upside Down, she goes to Mike's house . To avoid government agents, she hides in the woods . In the present, Eleven asks to go trick - or - treating, but Hopper says it's too risky . Hopper learns the blight has spread to pumpkin patches all over town . Nancy wants to tell Barb's parents about her death, but Steve insists it's too dangerous . At a Halloween party that evening, Nancy gets drunk and tells Steve she doesn't love him . Angered, Steve leaves, and asks Jonathan to take her home . Mike, Will, Dustin, Lucas, and Max go trick - or - treating . Will has a vision of a shadowy monster from the Upside Down trying to catch him . Mike admits to Will that he is still trying to contact Eleven . Eleven tries to contact Mike through the void but fails . Dustin finds a creature in his trash can . </Td> </Tr> <Tr> <Th> 11 </Th> <Td> </Td> <Td> "Chapter Three: The Pollywog" </Td> <Td> Shawn Levy </Td> <Td> Justin Doble </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> Dustin feeds the creature a 3 Musketeers chocolate bar and names it d'Artagnan ("Dart"). In a flashback, Hopper leaves food in the woods for Eleven . She approaches him and moves into his grandfather's hunting cabin . In the present, Hopper refuses to allow Eleven outside . Angry, she escapes and looks for Mike . Bob recounts a childhood nightmare to Will and encourages him to stand up to his fears . Nancy persuades Jonathan to help her tell Barb's parents the truth . Hopper confronts Owens with evidence that the pumpkin blight comes from the lab . Dustin brings Dart to school and shows it to Will, Mike, Lucas, and Max . Will realizes Dart is from the Upside Down . Dart molts and escapes . Eleven sees Mike and Max arguing and mistakes it for flirting . Jealous, she makes Max fall off her skateboard . On a videotape Will made while trick - or - treating, Joyce discovers an image of the monster . Will finds Dart, triggering a vision of the Upside Down . Dustin recovers Dart . Following Bob's advice, Will confronts the monster, but it invades his body . </Td> </Tr> <Tr> <Th> 12 </Th> <Td> </Td> <Td> "Chapter Four: Will the Wise" </Td> <Td> Shawn Levy </Td> <Td> Paul Dichter </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> Joyce takes Will home . His temperature is strangely low, but he refuses a warm bath . Eleven returns to the cabin . She and Hopper fight, and Hopper grounds her . Will tells Joyce and Hopper that he's connected to the Shadow Monster . Unable to explain in words, he makes a vast number of scribbles . Joyce and Hopper piece them together into a map . Nancy and Jonathan are caught by lab agents . Owens shows them the gate to the Upside Down . He says it can be contained but not destroyed, admits Barb died, and allows Nancy and Jonathan to go free . Secretly, Nancy records his confession . Billy warns Max to stay away from Lucas . Eleven finds Hopper's notes on Hawkins Lab . Using her psychic powers, she contacts Terry Ives, who calls her "Jane ." Dustin discovers Dart devouring his cat and realizes Dart is a young Demogorgon . Following Will's map, Hopper digs in Merril's field and finds a tunnel corrupted by the Upside Down . </Td> </Tr> <Tr> <Th> 13 </Th> <Td> 5 </Td> <Td> "Chapter Five: Dig Dug" </Td> <Td> Andrew Stanton </Td> <Td> Jessie Nickson - Lopez </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> Vines trap Hopper in the infected tunnels . Will realizes Hopper is in danger . Lucas tells Max the truth about Will's disappearance last year, but she doesn't believe him . Jonathan and Nancy play Owens' confession to Bauman . The three agree to publicize a watered down and more believable story about Barb dying from toxins released by the lab . Dustin traps Dart in his root cellar and recruits Steve to fight it . Owens and the lab scientists realize the soil from the infected pumpkin patches is part of a hive mind . Eleven hitchhikes to Terry's house . She telepathically communicates with Terry, seeing images of another child kept in Hawkins Lab and of Terry being crippled by forced shock therapy . Bob Newby figures out Hopper's location, and he and Joyce enter the tunnels to rescue him . They are joined by scientists from Hawkins Lab . As the scientists burn the vines filling the tunnels, Will screams in agony and collapses . </Td> </Tr> <Tr> <Th> 14 </Th> <Td> 6 </Td> <Td> "Chapter Six: The Spy" </Td> <Td> Andrew Stanton </Td> <Td> Kate Trefry </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> Will is rushed to the lab, where he cannot recognize Bob, Hopper, or Owens . Owens speculates that damaging the tunnels may be lethal to Will . He shows Hopper the lab basement, where an enormous gate to the Upside Down has been discovered under the floor . Dart molts again and escapes the root cellar . Nancy and Jonathan spend the night at Bauman's and admit their feelings for each other . Lucas offers to prove to Max that his story is true, and he sneaks her out of her house . Steve offers Dustin dating tips . Steve, Dustin, Lucas and Max set a trap for Dart at the junkyard . Max opens up to Lucas about Billy's anger over his father's remarriage to Max's mother . Dart, now the size of a large dog, arrives with a pack of adolescent Demogorgons and traps the four in a bus . Will announces he knows how to stop the Shadow Monster . Owens sends a team of soldiers into the tunnels, and the Demodogs leave the junkyard . Will apologizes, saying the Shadow Monster made him do it . The Demodogs ambush the soldiers, slaughter them, and climb into the lab . </Td> </Tr> <Tr> <Th> 15 </Th> <Td> 7 </Td> <Td> "Chapter Seven: The Lost Sister" </Td> <Td> Rebecca Thomas </Td> <Td> Justin Doble </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> In Chicago, Eleven locates Kali, who is the girl from Terry's memories . Kali can create illusions, and she leads a gang of outcasts who exact revenge on those who have hurt them . She teaches Eleven to channel her anger towards stronger powers . Eleven uses her powers to find Ray, the lab technician who performed shock therapy on Terry, and the gang breaks into his apartment . Ray claims Brenner is still alive, and he offers to lead Kali and Eleven to Brenner . They disbelieve him, and Kali tries to coax Eleven into killing Ray . When Eleven learns he has two daughters, she stops and prevents Kali from killing him . Back at their hideout, Kali conjures a vision of Brenner and demands that Eleven avenge their mother . Eleven visualizes Mike and Hopper and realizes they are in trouble . While Kali and her gang escape the police, Eleven returns to Hawkins . </Td> </Tr> <Tr> <Th> 16 </Th> <Td> 8 </Td> <Td> "Chapter Eight: The Mind Flayer" </Td> <Td> The Duffer Brothers </Td> <Td> The Duffer Brothers </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> The Demodogs overwhelm the lab . Mike convinces Joyce to sedate Will so that the Shadow Monster cannot track them . Mike, Will, Joyce, Hopper, Bob, and Owens shelter in the lab's security room . Dustin, Steve, Lucas, and Max track the Demodogs to the lab, where they regroup with Nancy and Jonathan . When the power goes out, Bob resets the circuit breakers so they can escape . Owens stays behind and uses the security cameras to guide the others out . Mike, Will, Joyce, and Hopper escape, but Bob is killed by the Demodogs . The group retreat to the Byers' house, where Dustin suggests that the Shadow Monster is a Mind Flayer . After disguising their location, they interrogate Will . Using Morse code, he taps out, "CLOSE GATE ." The house phone rings, and Will realizes where he is . The Mind Flayer sends a Demodog to the house, but, to everyone's surprise, Eleven arrives and kills it . </Td> </Tr> <Tr> <Th> 17 </Th> <Td> 9 </Td> <Td> "Chapter Nine: The Gate" </Td> <Td> The Duffer Brothers </Td> <Td> The Duffer Brothers </Td> <Td> October 27, 2017 (2017 - 10 - 27) </Td> </Tr> <Tr> <Td_colspan="6"> After finally reuniting with Mike, Eleven and Hopper head for the lab, where they find the gate guarded by Demodogs . Jonathan, Nancy, and Joyce take Will to Hopper's cabin and overheat him, forcing the Mind Flayer out . Mike, Dustin, Lucas, and Max want to draw the Demodogs away from the gate, but Steve keeps them at the house for their own safety . Billy, forced by his abusive father to look for Max, arrives at the Byers house . He overpowers Steve in a fistfight, but Max sedates him, and the group leaves in Billy's car . They start a fire in the tunnels, but Dart blocks their return . Dustin feeds Dart a 3 Musketeers bar, and Dart allows them to pass . Eleven channels her anger into closing the gate, and as the gate closes, the remaining monsters in Hawkins die . One month later, Hawkins Lab has shut down . Barb is given a funeral, and Owens provides Hopper a birth certificate for Eleven, listing him as her father . The students, including Eleven, attend the school's winter dance, the Snow Ball . Max and Lucas kiss, as do Mike and Eleven . Nancy pities Dustin and dances with him . In the Upside Down, the Mind Flayer towers over the school . </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 release date </Th> </Tr>

How many ep are in stranger things season 2