Vietnam, 1968 and John Kreese is recruited for a special mission where he is taught the martial art of Tung Soo Do. The mission fails with devastating consequences when Kreese hesitates to act. In the present day Kreese is recruiting new students to Cobra Kai and with the promise to mold them into the ultimate weapon recruits Hawk's former bullies, Kyler and Brucks. Hawk full of the hurt their bullying brought him exacts a brutal revenge on Brucks when the new recruits are told to fight for their place. Other Cobra's don't fair as well and Hawk's buddy Assface is replaced by Kyler.

Johnny continues Miguel's rehabilitation. His foot works, now his pussy legs must too. However, they get sidetracked when Johnny's response to Ali's Facebook message catches Miguel's eye, it's time to get him a kick ass profile, but is that the real Johnny? Miguel bumps into Tory for the first time since the school fight, but there is to be no reconciliation. The aftermath of which prompts Miguel to become the sensei and tells Johnny some home truths that he badly needs to hear, but while they argue, without realising Miguel is standing without assistance.

Daniel has returned from Japan, to find Sam and Antonio staying with his mother and Amanda has had a run in with Kreese. They hatch a plan which should see Kreese and Cobra Kai finished forever, but Kreese won't be defeated by diplomacy!