After a close call, Mr. Drew insists that if Nancy's going to be an amateur detective, she needs to be able to defend herself. So Nancy, Bess, and George decide to check out a Jiu-Jitsu class at Iron Dragon MMA. The technique is hard, but before she knows it, Nancy's having a lot of fun. And then, just as class ends, the students are shaken by a disturbing sight-someone's left a dead rat on the front desk and spray-painted "traitor" on the wall. With...

"Season 4 finds Miyagi-Do and Eagle Fang dojos joining forces to take down Cobra Kai at the All Valley Under 18 Karate Tournament... and whoever loses must hang up their gi. As Samantha and Miguel try to maintain the dojo alliance and Robby goes all in at Cobra Kai, the fate of the Valley has never been more precarious. What tricks does Kreese have up his sleeve? Can Daniel and Johnny bury their decades-long hatchet to defeat Kreese? Or will Cobra...

Thirty years after their final clash at the 1984 All Valley Karate Tournament, Johnny Lawrence is at his lowest point as a jobless handyman haunted by his wasted life. When he rescues a bullied kid from bullies, he is inspired to resurrect the notorious Cobra Kai dojo. It also resurrects his old rivalry with Daniel LaRousso. Daniel is a successful businessman who may be happily married but is missing an essential balance in life since the death of...