The Yellowstone enjoys an almost-perfect day branding cattle, Montana gets an unexpected visitor, Sarah sinks her teeth into Jamie, and Thomas Rainwater deals with a challenger from within.

Jamie goes through with his plan, John lends support to an unexpected friend, the Yellowstone cowboys embark on a journey, and a flashback reveals the source of Rip’s loyalty.

John sits down at the negotiating table with former friends and foes; as the battle for the future of the Yellowstone heats up, nothing will ever be the same.

Petra treads on dangerous ground in her attempt to solve the Mosaic puzzle. Finale.

Eric’s sister Petra queries police about Olivia’s case, and heads south to appeal to Joel for help.

Joel’s New Year’s Eve whereabouts come under increased scrutiny.

Joel weighs his options as evidence against him mounts; Eric is dogged by new allegations.