Louella Walker is a five year FBI agent who was abruptly transferred from her old job on the Human Trafficking Task Force the the BAU- against both hers and Unit Chief Aaron Hotchner's Wishes. As she tires to join this team while keeping a childhood secret locked away, she must learn that nothing can be hidden from this team. But so will the agent on the team who secretly had a hand in her transfer. After months worth of friendship, bickering and growing as a team, Hotchner and Walker will stumble upon a new secret to hide from the team. But will they succeed?