故事描述萊恩（吉諾亞拿尼亞 飾）的妹妹在幾個月前失蹤了，他認為她失蹤的原因是玩了網路上流傳的“電梯游戲”，傳說只要照著特定步驟操作電梯，就可以前往另一個次元。為了找到妹妹，萊恩說服他的朋友們一同進行電梯游戲，此舉卻為他們招來無法挽回的后果……

　　Two men and a woman circle the globe in a satellite armed with a nuclear device. The third world war breaks out, and a few months later the satellite crashes. They survive the crash but one man gets killed by survivors and the other man gets caught. The woman stays by the remains of the the satellite but is soon caught by evil punks who have taken power.

　　Five members of the mountain bike club, Sangaja. To ride a mountain bike, we head to Chiaksan Mountain, where Min-joon's Uncle villa is located. After arriving at Chiaksan Mountain and enjoying the ride, strange things began to happen to the party…. And something unidentified chasing them! A desperate survival game for Sangaja's party to survive on Chiaksan Mountain begins.

　　In the near future, aliens have invaded Earth and declared a galactic war resulting in thousands of human casualties. To save Earth, a team of four teenage astronauts brave the alien wilderness of a distant planet to stop an assassin from changing the course of history forever.