Dallas: Season 10, Episode 22
Revenge of the Nerd (27 Feb. 1987)
TV Episode - - Drama
An ecstatic Cliff Barnes unloads a stunning bombshell on the Ewing brothers. Furious at Cliff's disturbing disclosure, J.R. divides the Southfork house by accusing Pam of scheming with her brother to bring ruin to Ewing Oil.