When Rain Parker Alias Agent Black, a 22-year-old Agent for the CIA, gets suspicious once an important mission is shut down, and to save her friends and family, she must track down a device. On her way to figuring out just where it is, she meets Agent White, a good-looking man who instantly takes a liking to her. Follow Agent Black and she tries to find not just the device she needs, but also answers to old and new secrets, including clues that lead her to the real reason behind her father's disappearance.

Working for CIA, Rain is assigned a job to go undercover as an agent for the Mafia to gain information about their top headquarters. Given the identity as Agent Black, Rain is paired up with a guy called "Agent White". As she continues to be a double agent, Rain discovers something that puts her and Agent White's life at stake.