Of all the notorious lawmen who ever patrolled the violent Texas frontier, none are more storied than the Texas Rangers. And none could be more macho. While the once all-male bastion now allows "lady rangers", no one can say they are welcomed. Being the only female ranger in this elite squad isn't going to stop Molly Parker, she's ballsy and badass enough to get the job done despite a good-ole network filled with harassment and discrimination. In another profession, being a stunning former beauty queen might open doors but for Molly... that distinction only makes it harder. Molly is committed to finding the truth and seeing justice served; a trait no doubt inherited from her father, a former Texas sheriff. She's even willing to break some rules to get it done. Molly has to work with a sexist, retired Texas Ranger after an arrest she makes leads to a tip about an unsolved murder case he wasn't able to close, and 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. Molly is on the case when a famous basketball star is murdered in his home. Meanwhile, Becca plans a date night to let Billy in on some life changing news, and Dan receives a credible tip leading to an arrest of an unlikely suspect. Molly is on the hunt for a serial killer who murders women that remind her of her own abusive mother. Meanwhile, Molly introduces Dan to her family for the first time and Becca makes plans for Hailee's Quinceanera. Molly is assigned to the case of a female bank robber. Molly is conflicted when she discovers the identity of the perpetrator, especially since the FBI agent she is working with seems to have no such problem. In her personal life, Molly's boyfriend is subpoenaed to testify at her divorce hearing, and she suspects her brother is cheating on his wife. When a man is killed at a black-tie gala, it leads Molly to chase down an assassin who has been killing off abusive husbands. Meanwhile, Jake is still doing his best to delay their divorce for Molly.