F(x), SM’s best female group of agents is at it again. They performed and accomplished difficult missions before, and now, they do it alongside Shinee. But they vowed that they won’t fall in love with SHinee. Same goes to Shinee. But will these missions change that? Especially when they spend time together, and when one or more of their teammates get hurt? What would they do? And what if they face a villain from their past? What