Kris is left alone in charge of Raintree when Jean goes on a trip with Charlie, Matt goes with Dani to help her look into a new racehorse, and Pablo investigates a mysterious phone call.
Universal disapproval of Kris and Junior's wedding plans has everyone on edge, and even Kris wonders if she has what it takes to be part of the Davis family.
The fourth season begins six months after Kris was forced out of Raintree, which has undergone significant operational changes that leave Matt pining for the past.
In the series finale, Junior's schedule goes haywire when an urgent matter in Alaska that requires his attention coincides with Kris' ride on Wildfire in the Tucker Stakes and their wedding.
Kris and Junior consider a once-in-a-lifetime opportunity to relocate to Alaska for a year to work on a geothermal project in the series' penultimate episode.
Kris feels responsible when Oklahoma Crude is injured during a work out race with Wildfire so she gets a job at a local diner to help out, although it might not be enough.
With Pablo away, Matt trains Kris for her first turf race on Wildfire while simultaneously secretly training Wildfire's competition Dani's horse Picaro.
Kris and Junior help Matt with his improbable plan to get Raintree back in the horseracing business, which involves finding Wildfire's offspring, Flame.
Kris deals with a crisis of confidence after the events of the pileup, as Junior and Dani find out startling news about their father and Matt struggles with revealing information regarding the cause of the pileup with Kris.
With Jean still out of commission, Kris and Matt do their best to run the dude ranch at Raintree while also preparing for the next race, which features Dani's new horse in the field.