South Korean elite Air Force pilot Tae Hoon finds himself kicked out of his top-notch team and demoted into a combat unit after a cocky and dangerous air show demonstration. On the first day of his transfer to F15K, he meets Cheol Hui, the unit’s own top gun. Tae Hoon’s free-spiritedness and Cheol Hui’s rule-abiding ways come into conflict almost immediately. Meanwhile, Tae Hoon befriends the rest of the members of his new squad, including Se Yeong, whom he falls in love with. Tae Hoon continues with his antics until one day, a reconnaissance mission for the squad turns into an unexpected incident, ending in an untimely death and disappearance of a fellow teammate.
The unit receives an emergency announcement that an unidentified combat plane has entered into their territory, and Tae Hoon and Cheol Hui are forced to set aside their disagreements and lead their members to stop a war and rescue their missing comrade.