Dee’s blessed event is fast approaching but the father’s identity remains a mystery—to the gang, at least. So they throw a party and invite all of Dee’s former flings.

Dee gets involved with a famous local rapper who might be mentally challenged, and whose success inspires the rest of the gang to start a band.

Jane, Cho, Rigsby and Van Pelt decide to conduct their own investigation when Lisbon is accused of murdering a child molester she arrested who was recently paroled.