Walking on Thin Ice

As Detective Kyung-do gets closer to the truth about the Phantom case, his own superior Tae-gu frames him as a corrupt mole. With his most dogged pursuer neutralized, Tae-gu now turns his attention to Eun-soo, ordering a rookie to tail her young daughter Su-ah. Now, everyone is a target.

Though Su-ah is finally safe, Eun-soo is immediately cornered by Tae-gu, who threatens to expose her daughter's crimes. With Do-jin also discovering her secret, a desperate Eun-soo listens as Lee Kyung presents a dangerous way out. Some offers can't be refused.

Waking up from a brutal attack, corrupt detective Jang Tae-gu discovers his world is collapsing from the inside. His own protege, Choi Kyung-do, uncovers the damning evidence that could expose everything, proving that the hunter has officially become the hunted. There is no one left to trust.

Facing a lifetime in prison, Kang Eun-soo is offered a dangerous way out by the police. She and her partner Lee Kyung must lure her husband's murderer, the fugitive Jang Tae-gu, into a deadly trap. But as she fights for her freedom, Eun-soo discovers the deepest betrayals come from those she once called friends. Some lines, once crossed, can never be erased.