Kyung-min lives alone in a one-room apartment. One day, she finds traces of a stranger breaking into her room and soon a mysterious murder case begins to unravel.

A veteran gangster, Hee-su, is looking to retire from his crime family in the violent port town of Kuam, Korea. But an unexpected betrayal leads him down a bloody path where he gets caught in the middle of a mob war with deadly consequences.

After losing her laundry store to a fire incident, a single mom Duk-hee receives a call from a bank offering a generous upfront loan so she takes it right away. But soon after, she finds out that she has become a victim of a voice phishing scheme. Devastated, Duk-hee turns to the police for help, only to be more disappointed that there is no hope of retrieving her money. At the moment of despair, Jae-min, the phisher who tricked her, rings her phone once again to tip Duk-hee off about the criminal organization that locked him up and coerced him to make voice phishing calls from China. With that call, Duk-hee makes up her mind to investigate this case for herself and take a plane to China with her friends.

After he leaves the police force, Dae-ho establishes himself as the sheriff of his town. He then investigates Jong-jin, a businessman, because of his alleged ties to drugs.

A bullied teenager who is locked up at a juvenile detention center due to an unexpected accident, meets a mixed martial arts champion to break through his own limits.

A popular YouTuber crew "Killing Time" loses a team member in an unexpected accident during a live broadcast, losing everything. However, they only received a suspended indictment, as benefited from the newly proposed 'New Media Act, which was designed to actively utilise modern media for profits. To make a successful comeback, they devise a plan to return with even more sensational content. However, just as soon as success seems within reach, mysterious people appear and propose the 'real' Killing Time. One by one, team members begin to be murdered... Who are these mysterious people? Will they manage to survive?

Due to sudden deteriorating weather conditions, visibility on the Airport Bridge is severely impaired, leaving people stranded and at risk of the bridge collapsing due to a series of chain collisions and explosions. Amidst the chaos, the canine subjects "Echo" from the military experiment "Project Silence," who were being transported in secret, break free, and all human survivors become targets of relentless attacks.