SSA Aaron Hotchner is stepping down from his Unit Chief position for a 6-month period due to an assignment in overseas. To his temporary replacement comes SSA Alexandra Barnes, Chief of the Child Abductions Unit. Both Hotchner and Barnes have their own agendas and goals in this plan, which some are not aware of. So, will she be welcomed in the new unit? What will happen once the secret is out? Will she manage to make it work? Will she be willing to give the post back to Hotchner after the 6-month mark? One thing is for sure; this tranfer will change both their lives forever.