Three Hundred

S12 E19: The 300th episode marks an unusual show in which the feuding Ewing brothers, J.R. and Bobby, get trapped overnight in an elevator, with a defiant Bobby owning the only source of food or drink -- a precious case of expensive wine. The unique situation pits the pair against each other in a battle of wills and wits, not only sparring over how to run Ewing Oil, but how to run their respective lives as well.