The Fourth Son

Bobby's oil tanker sinks with over 600,000 gallons and is not insured. Cliff is seeing Donna with a view to working for Dave's campaign. Bobby does some detective work and finds out how devious J. R.'s plan really is. Amos Krebbs, whom Ray hasn't seen or heard from since he was three, shows up at Southfork with some very disturbing news for the entire Ewing family.