Set roughly eight months after the death of Maeve, Spencer believes he has lost all chance of having children. he had always wanted a partner to have throughout life, and children to enrich it, but without Maeve he felt like every chance of that is gone. The team is pulled to Florid to investigate a trail of fire and broken homes at the hands of an arsonist unsub. The only survivor of the fires so far is a young teenager named Adelaide Mowan , who seems to share many similarities with the young Doctor. Reid is assigned to Adelaide's protective detail, where she causes him to ponder possibilities of fatherhood.