Molly works with a sexist, retired Texas Ranger after an arrest she makes leads to a tip about an unsolved murder he wasn't able to close. Meanwhile, Billy is forced to make a decision that could help capture a drug cartel leader but would also put his family's safety at risk.

Becca learns that Billy is working undercover for Dan; Molly tries to save Lulu; Dan's life is put in danger by a corrupt politician.