Season 1 of Trap premiered on February 8, 2019.

Kang Woo Hyun is a respected anchor at a broadcasting station. He has a lovely family and he is asked to enter the political field. His life seems perfect. One day, he goes on a trip with his family and a tragic situation occurs. Meanwhile, Go Dong Kook is a veteran detective. He takes Kang Woo Hyun's case and investigates.