Complex sentence: Though Jean-Claude Van Damme was in the original as Kurt Sloan, he was not in this sequel as the action follows Kurt Sloan's brother David (Sasha Mitchell), who had to fight against Tong Po, the former Thai Champion.
Split into simpler sentences: Though Jean-Claude Van Damme starred in the original film as Kurt Sloan, he was not included in the sequel. Instead, the story follows Kurt's younger brother David Sloan (Sasha Mitchell), who finds himself challenged by Tong Po, the former Thai Champion.