Owen's first date with the beautiful and accomplished Chief of Staff to the governor of Texas goes awry. Meanwhile, the members of the 126 arrive at a house fire and find a couple's young daughter is missing. Then, Judd meets a teenager who has a profound impact on him.

The members of the 126 spring into action when a surprise military homecoming erupts into chaos. Meanwhile, Owen is left responsible for taking care of a talkative pet, Paul faces a medical emergency and Tommy goes on her first date since Charles' passing.

Owen and the 126 race to the rescue when Catherine receives a package at the governor's office that may contain a bio-hazard. Meanwhile Grace and Carlos team up to investigate a prank 9-1-1 call that turns deadly.

Owen fears the past is back to haunt him when a stalker targets him and Catherine. Meanwhile, Tommy and Gillian face consequences when Gillian saves the life of a woman wearing a "Do Not Resuscitate" bracelet.

The members of the 126 race to find, and then save, a mystery victim in a car crash. Meanwhile, Owen faces a crisis in his relationship with Catherine. Tommy goes on a first date and Carlos is surprised when he meets T.K.'s AA sponsor.

Owen and the 126 race to emergencies at a fast food drive-thru, a high school wrestling match and a case of road rage - all with one common element tying them together. Meanwhile, Tommy's estranged brother-in-law makes a surprise appearance in Austin, and Marjan confronts Capt. Strand about his anger management issues.