The Serpent's Tooth

Sue Ellen and Don Lockwood continue their romance. Cally wants to learn about the oil business from J.R. Tommy Mckay gets squeezed for more cash for his drug deals and he sells information on Carter's oil deals to J.R. Tracey's family problems put a strain on her relationship with Bobby. Don Lockwood pays a visit to J.R.'s office. Christopher feels left out because Cally spends time with John Ross. Jordon Lee retires from the business. Bobby and Cliff take April out on her birthday. Don Lockwood and Sue Ellen have a major fight and he almost quits. April questions Bobby about his relationship with Tracey. J.R. plots to use the information he got from Tommy to get back into Ewing Oil all the way.

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S12E19 - Three Hundred