Eve Cleary, a 19-year-old aspiring model, goes missing, but the team have trouble working out exactly when she disappeared. Their work is complicated further when it becomes obvious that there are very few people who actually knew Eve, and therefore, evidence and witness accounts are hard to come by. The team are surprised to learn, following Sam's intuitive work, that Eve is actually missing twice, under two different identities. After finally working out the day she vanished, the squad must decipher truth from fiction in order to solve the case. Also, Chet Collins makes his first appearance as the father determined to discover the truth behind his two-year-old son's disappearance, five years earlier.