Elena wants to get back at the Ewings so she agreed to work with Cliff Barnes. Shes agreed to be his insider and help get him out of jail. Christopher tried to reach out to her before she spoke to Cliff. He had no idea what she was up to, but its clear he is going to get his heart broken by El
During their meeting, Elena came in and asked for a job. They let her in, putting her right where Cliff Barnes wants her. She immediately got on the computers and called Cliff to tell him the good news. Well, good for him and bad for the Ewings.
Later, a man named Nicholas Trevino came into Ewing Global and announced that he is acting as Cliff Barnes proxy. He still owns 30% so the Ewings will not be able to sell any portion of Barnes Global. His presence was understandably shocking to the Ewings, but Elena also seemed surprised by it.