In the series finale, Luke opens up about his struggles, Maggie throws one last Christmas party at the bar, and Colt gives Beau a heartwarming gift.

Abby invites Colt out for a birthday dinner ... which might be a date. But the plan goes off the rails after Colt has an argument with Luke.

Jerry warns Colt that Lisa Neumann has a good case against him. And when Luke bails on work, Colt has to miss Peyton's baptism.

Colt realizes what he wants for his future, Beau and Maggie find some closure, and the gang celebrates Christmas at the bar.

Colt and Rooster worry when Beau has a change of heart about the calves. But that's just the beginning of the surprises that await the Bennett clan.

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

Heather sets up Rooster with her sister, but Colt's afraid he'll ruin a good thing. Maggie and Beau air their dirty laundry at marriage counseling.

Beau tries to make amends with the boys, but it may be too little, too late. A job offer drives a wedge between Rooster and Colt.

After Heather drops a bombshell, a visit from Abby's parents is the last thing Colt needs -- and they all end up at church together on Christmas Eve.

Beau leaves the boys hanging about the Peterson ranch. Rooster takes Jen on a date. Colt and Abby fight about their future.

Luke, Colt and Beau find Mary in bad shape in Nick's trailer. While Luke brings Mary back to the ranch, Colt and Beau wait for Nick.

To celebrate their last Thanksgiving on the ranch, Colt and the guys go on a turkey hunt. Mary checks into rehab.

As Colt battles the elements, he leaves Abby a poignant message. Armed with a new perspective, Beau surprises Joanne.

Luke urges Mary to go back to rehab. The police find a gun near the trailer and make an arrest, leaving Colt struggling with his conscience.

Luke's friend from the service offers him a job. Meanwhile, trouble brews with the co-op. Maggie tells Beau that she's met someone new.

Maggie stands up for Rooster when Beau kicks him out of the house. Meanwhile, Colt is torn between his brother and his father.

Heather makes a decision about the pregnancy. Mary reads Rooster the riot act for keeping it a secret, and Colt struggles with how to tell Abby.

Colt wants to buy Sam Peterson's ranch -- with or without his family's blessing. Colt and Heather have a heart-to-heart about their loss.

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.

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.

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.

Colt figures out what he wants from Heather. A sick calf gives Beau an excuse to avoid dealing with his feelings -- and creates some unexpected bonds.

While Rooster tries to broker peace between Beau and Maggie, Colt apologizes to Heather -- but his timing couldn't be worse.

Colt's new responsibilities keep him away from Abby. After a memorable night, Maggie ponders what she wants for her future.

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