Gamby and Russell end up invading Dr. Brown’s private space and the vice principals are surprised by a school evaluator.

Gamby looks to impress Amanda on a field trip organized by Mr. Hayden, a good-guy history teacher.

Gamby and Russell eye a homecoming football game as a way to further break Dr. Brown’s spirit.

Dr. Brown orders Gamby to lighten up on discipline; Russell copes with a disruptive neighbor.

Amanda makes a deal with Gamby, while Dr. Brown takes a veteran teacher to task over a shipment of missing books.

Abby asks Colt for space, but he finds every excuse in the book to drop by. Luke and Mary tie the knot in Vegas. Lisa Neumann accuses Colt of theft.

Back in Colorado, Luke works to win back Colt and Beau’s trust. Abby invites Colt to a teachers’ mixer. Mary struggles to stay clean.

Gamby bonds with Amanda during teacher workday; Russell’s patience is tested; Dr. Brown deals with the sudden appearance of her ex-husband, Dascious.

Beau gives Colt a taste of his own medicine. Mary asks Luke for help paying the mortgage. Colt confronts Abby about not getting to see Peyton.

Joanne shares difficult news with Beau. Abby helps Colt with a business idea. When Mary goes missing, Heather takes drastic measures.

Gamby and Russell look to finish what they started; Gamby confronts Amanda about her relationship with Hayden.

Out on bail, Mary breaks into her old house to grab her stash. After a talk with Dale, Joanne has a change of heart. Colt and Beau confront Lisa.

Gamby and Russell play their end game with Dr. Brown.

At Colt and Luke’s encouragement, Beau and Joanne plan a celebration. Abby asks Colt to go to counseling. Mary’s downward spiral continues.

Colt asks Abby to lie to the police. Joanne and Beau have a heart-wrenching talk about the future. Mary tells Luke she wants to go to rehab.

Abby and Beau pressure Colt to take Lisa’s deal, but support from the local ranchers leads him to waver. Stress causes Luke to lash out.

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.

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.

After a heart-to-heart with Maggie, Colt steps up and supports Heather. Meanwhile, the tension between Rooster and Beau takes a toll on Maggie.

Abby agrees to give Colt a chance, but her father isn’t as forgiving. Beau and Rooster go to a cattle auction. Maggie thinks about selling the bar.

The guys wind up in hot water after an ice fishing trip. Beau takes Brenda out to dinner, but Maggie’s not far from his mind.

Emotions run high when Abby and Heather fight, leaving Colt caught in the middle. Rooster faces the consequences of blowing off work.

During a snowstorm, Colt and Abby head out of town, Beau and Joanne get cozy at the ranch, and Maggie meets a charming stranger.

Colt gets possessive when Heather starts dating a teacher. Abby gives Beau relationship advice. Maggie has a business proposition for Rooster

As Heather’s medical bills roll in, Colt realizes how expensive it is having a baby. A surprise visitor at the bar sweeps Maggie off her feet.

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

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.

Wondering if he’s ready to marry Abby, Colt seeks romantic advice from an unlikely source: Beau. Rooster hires a flaky new waitress.

Beau ponders a lucrative business offer. Rooster runs afoul of the liquor board. Colt tries to make peace with Abby’s dad.

Colt and Abby start planning their wedding, but they don’t see eye to eye. Joanne confesses she still has feelings for Beau.

Abby moves in with Colt and Beau when she learns she’s losing her job. Rooster and Jen the engineer bond over getting dumped.

Back in town, Maggie frets about how Rooster’s been running the bar. Abby considers a career change.

A job opportunity in Denver threatens to drive a wedge between Colt and Abby. Maggie pushes back about the pipeline.

Maggie takes a stand that lands her in hot water. Colt and Rooster come up with a plan to buy the Peterson ranch, but they need Beau’s buy-in.

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.

Beau shrugs off the doctor’s orders and resists the family’s efforts to help him. Meanwhile, Colt lashes out at Maggie.

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.

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

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.