After discovering that his mother and Johnny are in a relationship, Miguel isn't totally comfortable; however, he comes to terms with it after he and Johnny admit their father-son love for one another. But, after one mishap in which Johnny drunkenly refers to Miguel as Robby, something switches in the teen, and his desperation to know his biological father increases.
At the All-Valley tournament, Miguel does incredibly well and advances to the semifinals, where he must face his best friend Hawk. Although Miguel suffers a back injury during the match, the doctors soon clear him to get back to compete; however, he decides to flee the tournament and heads to Mexico in search of his father.
Once Johnny and Miguel's mother, Carmen (Vanessa Rubio), discover he's missing, Carmen confesses to Johnny that Miguel's biological father doesn't know the teen exists. As a result, Johnny plans to find Miguel before it's too late.
Seasons 5 of Cobra Kai premieres Friday, Sept. 9 on Netflix.