In the wake of a shocking revelation, the Ewings have to pull together in a quest to honor J.R.'s legacy. Pamela returns a favor to John Ross by giving him information against Cliff. Meanwhile, Christopher puts his relationship with Elena at risk when he resorts to a J.R.-worthy tactic.
Guest stars include Judith Light as Judith Brown-Ryland, Ted Shackelford as Gary Ewing, Joan Van Ark as Valene "Val" Ewing, Charlene Tilton as Lucy Ewing, Kevin Page as Bum, Annie Wersching as Alison Jones, Barry Corbin as Executor, Alex Fernandez as Roy Vickers and Ken Kercheval as Cliff Barnes.
"Ewings Unite!" was written by Bruce Rasmussen and directed by Steve Robin.