An official from the drama said, ŌĆ£We are taking a break from filming until Dec 20. The entire broadcasting industry is cautious due to the re-surge of COVID-19, and we also decide to join this cautious by halting the filming.ŌĆØ Cliffhanger is a mystery drama that will tell the story of people who climb through the mysterious and unexplored regions of KoreaŌĆÖs Mount Jiri. Alongside with Kingdom writer Kim Eun Hee and Goblin and Mr. Sunshine director Lee Eung Bok, the drama drew keen attention from the pre-production stage for its star-studded cast, including Jun Ji Hyun, Ju Ji Hoon, Sung Dong Il and Oh Jung Se. Cliffhanger is scheduled to air on tvN in 2021. Source (1)