Although they have a fairly loving relationship, Hoon argues with his uncle before he leaves to go on a field trip to Morocco after Metrojet Flight 9268.

At a drama set Dal-gun watches a report of a plane crash that killed over 200 civilians due to structural failure.

With his world now turned upside down, Dal-gun travels to Morocco to attend the funeral for all the victims of the plane crash in the Mediterranean and Alboran Seas, grieving for the loss of his nephew.

As the situation grows more complex, he is forced to become partners with Go Hae-ri (Bae Suzy), a covert operative for the National Intelligence Service striving for a promotion.

Determined to find out the truth behind the accident, Dal-gun and Hae-ri embark on an investigation that leads them deeper into a tangled web of corruption.