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"You can't do this."
"Of course, I can. I founded Cobra Kai. It belongs to me. It always has... and it always will. I will never let my students lose. Even if they have to learn the hard way. One day you'll thank me for this, Johnny."
"This was a mistake. You want Cobra Kai? It's yours.
Johnny Lawrence and John Kreese[src]

"No Mercy" is the tenth episode of the second season of Cobra Kai and the final episode of Season 2.


It's the first day of school at West Valley High School but tensions between the two dojos have not cooled with the end of summer. And the rivalry between Daniel and Johnny comes to a head.


Daniel and Amanda wake up in bed together, still happy from their date night the night before, their marital problems behind them. However, Anthony reports that Sam did not come home. It takes Daniel and Amanda roughly five minutes to not just realize that Sam is missing, but to break into her laptop. Eventually, Daniel determines he can trace Sam's iPhone. Daniel gets in his car to follow the coordinates, which leads him to Johnny's apartment. Daniel knocks on Johnny's door, asking if Sam is there. Johnny confirms she is, but refuses to let him in, sensing Daniel's mood, and he shuts the door in Daniel's face. Daniel breaks down the door and him and Johnny immediately begin to fight. Daniel gains the upper hand, and begins to look for Sam, but Johnny counters, and Daniel's attention turns back towards the fight. Before things get worse, however, Robby realizes what is going on, and he brings Sam out.

It's the first day of school after the summer break and Daniel has taken Sam's car away and he drives her to school. They argue a bit, and Sam gets out of Daniel's car without saying a goodbye, still unhappy with Daniel. Not long after, Johnny drops Robby off at school, and they seem to be on good terms. As the other Cobra Kai and Miyagi-Do Students are working hard in their first period classes, Tory is nowhere to be found, until suddenly Tory who skips all of her first period class, hijacks the school PA system and announces she's going to hunt Sam down after she kissed Miguel. After Tory threatens Sam, the bell rings and Sam and Tory both head towards each other at a hallway, with the other Cobra Kais, Miyagi-Do students, and several other students witnessing Tory starting to physically fight Sam. As the two girls face off in the hall, Robby tries to stop the fight by pulling Tory away from Sam. Tory tries to attack Robby but he holds her in place against a batch of lockers. At that moment, Miguel arrives at the scene where Robby then kicks Doug away when Doug demands Robby to free Tory. Miguel attacks Robby after mistakenly believing he is attacking Tory. All of a sudden, an all-out karate war erupts between the Cobra Kai and Miyagi-Do students.

The war's main fights include: Sam vs. Tory, Miguel vs. Robby, Bert vs. Nathaniel, Chris vs. Mitch, and Hawk vs. Demetri.

Raymond who had just gotten a job as a security guard at the school attempts to show the principal his competency by viciously assaulting several Miyagi-Do students.

Hawk is able to beat up several Miyagi-Do students before going after Demetri. Demetri however is able to use his lessons from Miyagi-Do to counter all of Hawk's attacks. Demetri then displays offense by kicking Hawk into a trophy case, though he does apologize there after.

Bert successfully breaks Miyagi-Do student Nathaniel's glasses, but Nathaniel then tackles Bert and punches him several times, only for the security guard to pick both of them up and take them potentially to the principal's office.

Chris fights Mitch in one of the hallways. They both put up a pretty good fight, until Mitch kicks Chris in the face, knocking him down to the floor. After taunting Chris that he should've stayed in Cobra Kai, Mitch gets knocked out by a book to the face by Chris.

Miguel gets the upper-hand on Robby, but after noticing Sam and Tory still fighting, he lets Doug and Mikey fight Robby, and he himself then runs up to stop Sam's and Tory's fight. He is rejected with his actions when Tory kicks and hits Miguel away in anger that he had kissed Sam. Robby defeats Doug and Mikey easily and runs to the spot where Miguel, Tory and Sam are, where he and Miguel resume their fight.

Tory has the upper hand over Sam for most of their fight, but once Sam starts to get the upper hand, Tory starts fighting more viciously by using her spiked bracelet (or brass knuckles) to harm Sam. Tory is able to injure Sam's wrist with the bracelet. Just as she is about to kill Sam with the bracelet, Sam blocks and then kicks her down and over the stairs. She lies there in pain for the rest of the fight.

Miguel and Robby are the last two fighting. Their fight seems to be even, but when Miguel tells Robby that Sam loves him more, an angry Robby aggressively attacks Miguel and starts to get the upper hand. Miguel however recovers and beats Robby a second time by locking his arm which Robby is unable to break out of. As instructed by his sensei, Miguel becomes the bigger man and shows mercy and even apologizes. Then a furious Robby kicks him with a cheap shot, inadvertently sending him sailing over a balcony and spine-first onto a handrail. Horrified at what he has done, Robby runs away while Sam, Eli and a cop go to an unconscious Miguel.

At the hospital, Sam has serious injuries and is devastated over what happened. Daniel promises to make Cobra Kai pay for what happened as Tory started the fight, but Amanda refuses to indulge him any longer now their daughter has been badly hurt and demands that Daniel gives up karate and Miyagi-Do. Daniel reluctantly agrees and Amanda is determined to ensure Tory is expelled from West Valley High School for good. Meanwhile, Carmen blames Johnny and tells him she never wants to see him again, and Johnny naturally also blames himself, as do many of the remaining members of Cobra Kai. If Miguel hadn't shown mercy, he wouldn't be lying unconscious in a hospital bed. However, this would lead to Johnny's son, Robby, being in Miguel's shoes with a broken arm. When Johnny returns to the dojo and finds several of his students which include Hawk, Tory, Stingray and Mitch being coached by Kreese. Johnny asks what he is doing. Kreese says that Cobra Kai belongs to him as he founded it, and he reveals that he has worked out a deal with the landlord and renewed the building's lease in his name, as Johnny had only been on a series of handshake deals. Johnny realizes that bringing back the Cobra Kai Dojo was a massive mistake and tells his former sensei that if he so desperately wants possesion of the Dojo, then he can have it since Johnny's efforts have obviously done more harm than good. Johnny then leaves as Kreese trains the students. As Daniel disassembles Miyagi-Do Karate and apologizes to his picture of his lifelong mentor for his failure, Johnny gets drunk on the beach & throws his car keys into his car. He gets mad and throws his smartphone onto the beach (the screen later lighting up to reveal Ali has sent him a friend request) and disappears into the night.

Trivia/Episode Discussion

  • A fight breaks out between the students of Cobra Kai and Miyagi-Do resulting in an all-out war as predicted by John Kreese.
  • Tory attempts to maul Samantha using her spiked bracelet as a knuckle duster. She also refuses to show mercy to Sam in an inversion of the finale to The Karate Kid Part II.
  • Robby's fate after critically injuring Miguel was not addressed. He was last seen running off after the fact.
  • The episode ends with a cliffhanger, as Johnny receives a Facebook friend request from Ali Mills Schwarber, which he did not notice, strongly hinting Ali returning to his life after it was foreshadowed in previous episodes.
  • It is clear that Sam has feelings for Miguel, since it is evident she still cares about him (and loves him) as she tearfully says she hopes Miguel is okay.
  • This is Aisha Robinson's and Stingray's final appearance as they not returned for Season 3.
  • When Daniel and Johnny are fighting archive footage of the 1984 all valley tournament also appears, showing the two fights similar, but with an age difference and location difference.
  • While at school, Sam is seen looking at The Outsiders, a novel by S.E. Hinton. The novel was adapted into a film in 1983 and starred Ralph Macchio as the character "Johnny Cade". The role served as Macchio's breakout role before his casting as Daniel LaRusso in The Karate Kid.
  • The fights at the school are based on the threat level they possess Tory and Samantha's threat level is the second highest while Miguel and Robby's threat level are the highest which makes them the final people to battle.
  • Doug would've gotten expelled for assaulting the teacher.
           The Karate Kid Franchise

The Karate Kid | Part II | Part III | The Next Karate Kid | The Karate Kid (2010)

Cobra Kai
Season 1
Ace Degenerate | Strike First | Esqueleto | Cobra Kai Never Dies | Counterbalance | Quiver | All Valley | Molting | Different but Same | Mercy

Season 2
Mercy Part II | Back in Black | Fire and Ice | The Moment of Truth | All In | Take a Right | Lull | Glory of Love | Pulpo | No Mercy

Season 3
Aftermath | Nature Vs. Nurture | Now You're Gonna Pay | The Right Path | Miyagi-Do | King Cobra | Obstáculos | The Good, The Bad, and The Badass | Feel The Night | December 19