Martell moves upstairs in an effort to save his marriage. Melody keeps up appearances at a photo shoot. Maurice makes plans to move his son to Huntsville. And Marsau tells Latisha about the rumor Martell is spreading about him having 20 girlfriends.
After a rainbow appears over the Go Jet Academy, Glitch becomes fascinated with the legend of a pot of gold appearing at the end of it. He tries to create his own, bigger rainbow, ignoring Ubercorn's warnings that their ends can never be reached. When he instead causes a huge storm to appear, the Go Jetters must work fast to stop the Academy from flooding.
Mau needs sex every day. Back at the beginning of therapy, Evelyn feels betrayed by Alan and no longer trusts him. Orna has trouble remaining impartial. Elaine discovers a connection between her childhood trauma and her marriage.
While Dick trains the next generation of Titans, Donna and Kory track down a rogue metahuman. But an old threat drives the Titans – old and new – back together.
Lillian searches for an orphan's family member. Gabriel meets face to face with the bank robber who tried to kill him. Grace and Chuck grow closer but Tess orchestrates a scenario to extinguish their romantic spark. Maggie helps Joe with an old shoulder injury.
Jason Rygaard races to clear a hillside in time to fill four logging trucks; Jay R Harkness fights to control the untethered Tigercat on a steep, snow-covered mountainside; Bucking Billy and his son Hogan battle a forest of hang-ups and widow-makers.
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.
Joanne shares difficult news with Beau. Abby helps Colt with a business idea. When Mary goes missing, Heather takes drastic measures.
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.
At Colt and Luke's encouragement, Beau and Joanne plan a celebration. Abby asks Colt to go to counseling. Mary's downward spiral continues.
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.
Colt, Beau and Luke bond during a road trip to New Mexico. Back home, Abby runs into Mary and Nick.
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.
Colt tries to round up the other ranchers to give Neumann's Hill some competition. After another argument with Abby, Colt signs the divorce papers.
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.
Sandi Toksvig delves into a bit of quintessential QI with Alan Davies, Cariad Lloyd, Holly Walsh and Josh Widdicombe.
An estranged brother and sister reunite at the site of their future joint investment.