In Ernest Goes to Jail, Jim Varney returns as leering idiot savant Ernest P. Worrall, star of scores of TV commercials and feature films. Varney also takes on a second role in the film: an unrepentant, cold-blooded murderer named Felix Nash. When Ernest serves on the jury for Nash's murder trial, Nash arranges for look-alike Ernest to go to jail, while he stays on the outside to plan a major bank heist. Fortuitously for the criminal, it's the same bank where Ernest works as a security guard.