Ralph Macchio and William Zabka battled in the first "Karate Kid." Now Ben Wang and Aramis Knight take their place as martial-arts enemies.

The most dramatic moment in “ Karate Kids: Legends ” is its final fight – a 12-minute sequence called the Five Boroughs Tournament that takes place on the roof of a New York City skyscraper.

The newest star of the beloved franchise opens up about the surreal — and nerve-wracking — experience of working alongside two martial arts icons.