Fierce rivalries. Fresh opportunities. Daniel and Johnny find themselves back where it all began — and the stakes have never been higher.

The action heats up as the Valley's top fighters pit their courage against their rivals' speed and strength. But one last surprise changes everything.

As the moment of truth arrives, Daniel and Johnny confront their pasts. Then it's fight time as Robby battles Axel in the world karate championship.

Daniel and Johnny use historic Barcelona as a training ground for their captains. But a cheap shot in the semifinals sparks a brawl to end all brawls.

Who will move to the next round in the tournament's tag team elimination match: Miyagi-Do or Cobra Kai? A shocking revelation shatters Daniel's world.

Miyagi-Do's top students square off to be team captains, but a devastating tragedy changes everything. Kreese reveals his final surprise.

A personal crisis shakes Miguel and Johnny to the core. Chozen and a rival sensei team up to find their students — but discover something else instead.

Daniel and Johnny invite a new sensei to evaluate their students. Friends become foes as the competition heats up for a spot in the Sekai Taikai.

The search for clues about Mr. Miyagi's past leads Daniel into danger. Miguel raises doubts about Robby's focus. Sam observes ugly behavior off the mat.

Sam and Robby turn to their friends for support as they train for the challenges ahead. Johnny and Carmen welcome a new addition to the team.

With the Sekai Taikai underway, a betrayal threatens to throw team Miyagi-Do off their game. A dramatic first event unleashes the element of surprise.

The Miyagi-Do students struggle to put aside past rivalries while training for the Sekai Taikai. Johnny and Chozen clash over rebranding the dojo.

A shocking discovery turns Daniel's world upside down. Johnny schemes a way to give Sam and Tory their edge back. The tournament reveals its location.

While their students plan for life after karate, Daniel and Johnny clash over reviving the Sekai Taikai. Kreese reconsiders his guiding principles.

Kreese faces a dangerous test to prove his worthiness. Daniel offers Johnny a helping hand while the teens contemplate life beyond high school.