Episode 4, "Underdogs," thrusts the Miyagi-Do/Eagle Fang students into a
high-stakes competition to determine the six representatives for the Sekai
Taikai. The episode is marked by intense rivalries, unexpected alliances, and a
surprising display of ruthlessness.

The Battle Royale Begins
In the opening scene of "Underdogs," Johnny Lawrence stands before his Miyagi-Do students, delivering a motivational speech about the upcoming Sekai Taikai tournament. He emphasizes the importance of earning their place on the elite six-person team, highlighting the fierce competition that lies ahead.
The tension mounts as Daniel LaRusso and Johnny present their respective wish lists for the team, showcasing their differing approaches and loyalties. Daniel advocates for Demetri Alexopoulos, while Johnny pushes for Devon Lee, a former Eagle Fang student. Their contrasting opinions set the stage for potential conflict, despite their shared goal of selecting the strongest team.
To ensure an impartial selection process, Johnny suggests a "cutthroat, no-holds-barred Battle Royale" where the last six kids standing will earn a spot in Barcelona. The students eagerly embrace the challenge, ready to prove their worth and secure their place on the team.
Mike Barnes Enters the Scene
The arrival of Mike Barnes, the formidable karate champion from "The Karate Kid 3," adds a new dimension to the selection process. His reputation as a ruthless competitor and his no-nonsense attitude immediately instill fear and respect among the students.
Barnes takes charge of the Battle Royale, implementing a series of grueling challenges that test the students' physical and mental limits. They are tasked with chasing chickens, breaking boards, and holding heavy stones while squatting, pushing their bodies to the brink of exhaustion.
As the competition intensifies, Barnes selects a group of finalists, including Hawk Moskowitz, Robby Keene, Miguel Diaz, Sam LaRusso, Tory Nichols, Anthony LaRusso, Demetri, and Devon. The pressure mounts for these remaining students as they strive to prove their worth and secure their place on the team.
Anthony's Elimination and Devon's Prank
The next day, Barnes introduces the second round of the tryouts, which requires the fighters to steal red flags attached to their competitors. The intensity escalates as the students engage in fierce battles, desperate to avoid elimination.
During his match-up with Kenny Payne, Anthony LaRusso takes a particularly brutal hit to the face, resulting in his elimination from the competition. The incident highlights the ruthlessness of the selection process and sparks a tense confrontation between Daniel and his son. Anthony, feeling defeated and undervalued, expresses his frustration at his father for letting him believe he had a chance.
Meanwhile, Devon Lee, despite her initial struggles, manages to impress Barnes with her determination and resilience. However, her frustration at not receiving the same praise as Tory and Sam leads her to seek revenge on Kenny, the student who had eliminated Anthony.
The Final Challenge and a Surprise Revelation
As the competition nears its end, Barnes sets a final challenge for the remaining fighters: two flags are buried deep within the forest, and the two fighters who fight off their fellow dojo members and retrieve them will earn a spot on the team.
The students engage in a chaotic scramble through the forest, determined to secure the flags and their place in Barcelona. Anthony, seeking payback for Kenny's role in his elimination, slips laxatives into Kenny's water bottle.
The prank backfires spectacularly when Kenny is forced to abandon the race due to an urgent need for a bathroom. His mortifying accident in front of the entire dojo earns him the nickname "Brown Belt" from Johnny.
Despite the chaos, Devon manages to secure one of the flags, revealing herself as the culprit behind the laxative prank. Her actions expose a darker side to her character, raising questions about her true intentions and motivations.
The Team is Selected, but Tensions Remain
The final spot on the team comes down to a fierce battle between Hawk and Demetri. Despite their friendship, they fight with intensity, each determined to secure their place on the Sekai Taikai team.
In the end, Demetri emerges victorious, leaving Hawk on the sidelines. The decision sparks disappointment and frustration in Hawk, who feels he has been unfairly overlooked.
As the team for the Sekai Taikai is finalized, Daniel expresses his concerns about the selection process, particularly Johnny's involvement in a physical altercation with Barnes to secure Devon's spot. He worries that the team's dynamics may be compromised and that they may not be prepared for the formidable competition they will face in Barcelona.
Despite Daniel's concerns, Johnny remains confident in the team's abilities.
He assures Daniel that they have assembled the strongest team possible, but
Daniel remains unconvinced, acknowledging the unknown challenges that await them
in the international tournament.
Ultimately, "Underdogs" showcases the challenges faced by the Miyagi-Do/Eagle Fang students as they strive to represent their dojo on the world stage. The episode highlights the importance of teamwork, resilience, and the ability to overcome adversity. As the team for the Sekai Taikai is finalized, the stage is set for even greater challenges and rivalries in the upcoming episodes.