Beau issues Luke an ultimatum. As Colt tries to prove himself to Abby, Luke makes him an offer -- but Mary drives a wedge between them.

Colt hides the truth from Abby as their financial woes go from bad to worse. A drunken night leads to an awkward morning after for Mary.

Money troubles put a strain on Colt and Abby's relationship. Beau tries to get Luke help for his PTSD but refuses to bail Colt out of a jam.

Beau's softer side emerges when he takes Luke under his wing, but Colt doesn't trust his cousin. Maggie comforts an exhausted Abby.

While Abby and Colt struggle with parenting an infant, another new arrival shakes things up at the ranch. Maggie confronts Mary.

Colt tries to keep his cool as he worries about Abby -- and wonders if he's ready to be a dad. Maggie catches Mary in a lie.

One month later, tensions run high as Colt and Abby scramble to get ready for the baby. Lisa Neumann makes Beau an offer.

Beau intervenes to keep Colt out of trouble. Abby and Colt follow a lead. Maggie returns to Garrison, and Mary wrestles with guilt.

After a fight with Nick lands Colt in hot water, Mary presses her ex for the truth. Beau delivers troubling news.

While Abby's in Denver teaching, Colt works to rebuild the Peterson ranch. Rooster misses his first day of work.

Nick confronts Rooster. Running out of options, Colt reaches out to Lisa Neumann. Joanne urges Beau to make peace with Colt.

Beau's at the end of his rope and decides to teach Colt and Rooster a lesson. Mary realizes she needs to choose between Rooster and Nick.

When Colt lands in trouble covering for Rooster, he tries to cash in a favor. Beau invites Joanne to stay at the ranch. Colt plans a surprise for Abby.

The Bennetts return to the ranch. Beau gets a business proposition from Neumann's Hill. A face from Maggie's past arrives with news.

Colt and Mr. Phillips search for Abby. Heather warns Rooster about Nick. An unexpected celebration brings everyone together.

Fires force the town to evacuate. While Maggie takes charge, Beau feels hopeless. Colt runs into Heather, and Rooster meets Mary's boyfriend, Nick.

Four months later, wildfires rage in Colorado. Abby wants to postpone the wedding, but her parents don't approve. Joanne stands up to a stubborn Beau.

Torn between the ranch and a job opportunity, Colt wonders what's best for his family's future. Mary offers to work at Maggie's bar.

Maggie fights to keep the ranch afloat as she reaches a breaking point with the boys. Easter dinner with Abby's parents takes a surprising turn.

In the wake of his heart attack, Beau vows to stop sweating the small stuff -- but Colt and Rooster's latest blunder makes him lose his cool.