My alien daddy pays a visit.

Song Jin-Woo (Kim Dae-Gun) has worked as a non-permanent contract employee for the past 4 years at Moojin Girls' High School. He is a good teacher and dreams of a school where no one is left out. New contract teacher, Yoo Sung-Pil (Moon Yoo-Kang), comes to Moojin Girls' High School. When Song Jin-Woo was a high school student, he was bullied by Yoo Sung-Pil and other students.

In the year 1971, former Korean Air Force fighter pilot Tae-In (Ha Jung-Woo) works as a pilot for a commercial airline. He faces a crisis inside a hijacked flight with the passengers, including Yong-Dae (Yeo Jin-Goo), and his crew members, including Captain Kyu-Sik (Sung Dong-Il) and Flight Attendant Ok-Soon (Chae Soo-Bin).