Ryland gives John Ross video of the Railroad Commissioners Sexual exploits in exchange for a flash drive. With the proof, John Ross can get the endangered species investigation lifted and be able to frack on Southfork.
Emma holds up the transaction so that John Ross is late to his own wedding. But the wedding does take place and John Ross and Pamela marry in front of family and friends.
Sue Ellen threatens John Ross that she'll tell Pamela about his affair with Emma if he doesn't end it. He doesn't back down.
Ryland takes pictures of a 16 year old girl. Nothing actually happens but the photos look otherwise. He plans to have John Ross' secretary get physical evidence on the same dress in order to blackmail John Ross.
Lucia Trevino shows up in Dallas to tell Nicolas she no longer wants a divorce and if he doesn't comply, she'll tell Elena the truth about his past. He agrees.