It is the story of Kim Seong Jun, an ordinary man who lost his job during the IMF crisis, who jumps into the counterfeit goods business in the late 20th century and grows into the world's counterfeit goods king in the 21st century, not just in South Korea.
Sorry, no info about the next episode of Knock Off is available yet.
The TV show is either in vacation or waiting to start their new season. When information about future episodes becomes available, it will be posted here.