Ean has a critical mission to return to the future to save everyone. However, she becomes trapped in the distant past while trying to prevent the escape of alien prisoners who are locked up in the bodies of humans. Meanwhile, Muruk, who helps Ean escape various predicaments, is unnerved when he begins sensing the presence of a strange being in his body. Traveling through the centuries, they are trying to prevent the explosion of the haava.

Woo-chul used to be a successful boxer, but he had to go to prison because his opponent died in the middle of a match. Now that he’s been released, he intends to become a model citizen. Meanwhile, his friend Do-shik will do whatever it takes to get ahead. After choosing different paths, they will be forced to plot against and betray one another.

When a bombing occurs during a soccer match between China and South Korea, the two countries are embroiled in a fierce cat-and-mouse chase.

After a car accident leaves one man dead and another in a coma, it's believed that the dead man was at fault. Guilt-ridden, his wife, Hee-ju, struggles to move forward. She ends up learning that the victim had previously tried to kill himself. Suspecting the accident may have been on purpose, she begins an investigation.