Event planner Carley Kensworth lives an extremely structured lifestyle, planning each activity down to the most minute detail. Organization is the name of the game and she refuses to falter.

Sgt. Gage "Ace" Moore, ex-Army Ranger, skilled sniper, and Alpha Four investigator, thrives on living in the moment, content to tackle obstacles as they appear. Intent on untying Carley's structured strings, he vows to show her the value of spontaneity.

Ace's patience pays off when Carley finally agrees to break free of her protective shell and do things his way. However, when Carley's events become victims of sabotage, both structure and spontaneity prove to be the key to saving her reputation and her life.