The big bad from Karate Kid III, Terry Silver, is back -- and teaming up with John Kreese to take out both Daniel LaRusso (Ralph Macchio) and Johnny Lawrence (William Zabka). With their dojos hanging in the balance, it's all leading up to the All Valley Under 18 Karate Tournament -- and only one can come out on top. Season 4 premieres December 31, 2021.
