When the soldiers entered the tunnels to scrutinize the location, Will apologized to Mike and Joyce as he revealed that the Mind Flayer had coerced him to send the soldiers into a trap. He also implored Joyce to go away as the Demodogs were reaching them. Mike tried to warn the scientists but it was too late as the Demodogs massacred the soldiers and started invading the lab. Taking Mike's advice, Joyce sedated Will as he pointed out that the Mind Flayer could be spying on them. With the help of Hopper, Joyce, Bob, Dr. Owens and Mike, Will was taken out of Hawkins Lab, in spite of the swarming Demodogs and returned home to the Byers' household. After being unable to find Eleven, Mike was reunited with his parents and returned home where he was interrogated by government agents through a window, refusing to give any information on Eleven. Then, Mike saw a silhouette, similar to Eleven at the window. His reaction alerted the government agents and they went outside to investigate. When Eleven assured that she could close the Gate, Mike pointed out that it might also kill Will. So, together, the group came up with a plan: Joyce, Jonathan, and Nancy would exorcise the Mind Flayer from Will's body while Eleven and Hopper would go to the lab and close the Gate. Before leaving, Eleven promised Mike that he will not lose her again.

Seeing that the Mind Flayer was headed toward the cabin, the group prepared for battle. In the assault, the Mind Flayer grabbed El by the leg with one of his tentacles. After being freed from the creature’s grasp, El severed the Mind Flayer’s head in half, temporarily incapacitating him and allowing the group to escape. Michael "Mike" Wheeler, portrayed by Finn Wolfhard, is a main character in Stranger Things. The leader of the Party, he is the boyfriend of Eleven, the best friend of Dustin Henderson, Lucas Sinclair, Will Byers, and Max Mayfield, and the younger brother of Nancy Wheeler.Romano, Evan (July 11, 2019). "The Definitive Power Ranking of Every Stranger Things Character After Season 3". Men’s Health. Archived from the original on August 8, 2019 . Retrieved August 8, 2019. Mike was well-acquainted with Will's older brother, Jonathan. When meeting up with Jonathan, after being rescued by Chief Jim Hopper, the two worked together in building a sensory deprivation tank so Eleven could use her powers to locate Will in the Upside Down. After Hopper became trapped by the tendrils in the tunnels, Will's connection with the Mind Flayer allowed him to know of the impending danger. Having revealed this to Mike and Joyce, he drew Hopper's location within the tunnels. With help from Bob, the group figured out the location and left to rescue Hopper. Hopper, Joyce and Will presumably returned through the Gate at Hawkins Lab, with the weakened Will being carried. It was unclear how Hawkins Lab personnel reacted to their return, given Dr. Brenner's pessimistic belief that Hopper and Joyce wouldn't survive the Upside Down. However, the lab likely had a role to play in getting Will immediately hospitalized at Hawkins General Hospital.

Around 1976, Will started kindergarten, attending the same class with Mike Wheeler. Mike didn't know anyone and was lonely until he noticed Will alone on the swings. Mike walked up to him and asked if he wanted to be his friend, to which Will agreed. He eventually met Lucas Sinclair, due to him living close to Mike. Eleven, Mike, Will, Dustin, Jonathan and Nancy went to Hawkins Memorial Hospital, where they found Lucas and Erica keeping company to a barely-alive and comatose Max. Lucas told his friends that the doctors were skeptical of Max ever awakening and that they believed it was a miracle she was still alive due to her heart technically stopping for over a minute. Eleven secretly went into the Void to locate Max, but was unable to find her consciousness, much to her horror. What was the deal with Mike Wheeler in 'Stranger Things 2'?". Mashable. November 2, 2017. Archived from the original on September 21, 2019 . Retrieved September 21, 2019.In the comic Stranger Things and Dungeons & Dragons, his birthday is on April, 7th. He was 10 years old in 1981 and thus 12 during the events of Season 1. [1] The next day, the boys went to school dressed in their Ghostbusters costumes, only to discover that no one else had dressed up for Halloween. After school, Mike rode his bike home with Lucas and Dustin when a car behind them started speeding up towards them. Mike and his friends tried to ride their bikes faster until the car suddenly swerved to the other lane to avoid collision with the boys. As Mike and his friends recovered, he and his friends saw that Max was in the car with her stepbrother, Billy Hargrove.

Dustin and Lucas become infatuated with new student Maxine "Max" Mayfield ( Sadie Sink) and attempt to get her to join their group. Mike disagrees and abandons Dustin, Lucas, and Max on Halloween Night. The next day at school, Dustin reveals the new creature he discovered which he calls D'Artagnan. After seeing the creature, Will confides to Mike that the creature is from the Upside Down. At the same time as Mike confronts his feelings towards Max, Will undergoes an episode where he is possessed by "the Mind Flayer." Mike and Will witness Hawkins Lab agents torching parts of the Upside-Down from underground tunnels, causing Will to begin screaming and convulsing on the ground. Will is then taken to Hawkins Lab so he can be treated. After they escape Demodogs at Hawkins Lab, they reunite with Dustin, Lucas, Max, Nancy, Will's brother Jonathan ( Charlie Heaton) and Nancy's ex-boyfriend Steve Harrington ( Joe Keery).In 1984, Mike went with Will, Joyce, and Bob to rescue Hopper in the Upside Down tunnels, demonstrating his willingness to come to Hopper's aid. However, when Mike found out that Hopper had been hiding Eleven for nearly a year, he became furious with Hopper, blaming him for hiding her. Although Hopper initially tried to justify his actions, he stopped when he saw how broken Mike was and comforted the sobbing boy, apologizing to him as he realized how wrong he was to have kept Eleven hidden. As Will awoke, his mother and brother happily and emotionally greeted him and comforted him, with Jonathan bringing a box of his things, including a new mixtape.