While Chris develops a crush, Julius and Rochelle have their work cut out dealing with all of Tonya's and Drew's admirers.
While Chris finds his dad the perfect gift, Julius decides he would like to spend Father's Day alone...
The hunt for a methodical killer takes the BAU to Arizona to search for an increasingly devolving UnSub, and the team speculates that Hotch is in the running to be the new BAU unit chief.
Carlos and Gaby get temporary custody of baby Lily, Bree's father and stepmother come to town to mediate between Andrew and her, and Susan suddenly finds Karl back in her life.
Mona returns to Rosewood in a very fragile state as she must answer to the police for faking her death. Matters only get worse when she is confronted about Lesli's inadvertent involvement in Mona's plot. Hanna is determined to help Mona out, not only to reassure her she is safe from Alison but also to try and repair Mona's friendship with Lesli.