Bumbling Ernest P. Worrell is assigned to jury duty, where a crooked lawyer notices a resemblance with crime boss Mr. Nash, and arranges a switch. Nash assumes Ernest's job as a bank employee, while Ernest undergoes Nash's sentence to the electric chair. But instead of killing him, the electrocution gives Ernest superhuman powers, enabling him to escape from jail and foil Nash's attempt to rob the bank.
Novalee Nation is a 17-year-old Tennessee transient who has to grow up in a hurry when she's left pregnant and abandoned by her boyfriend on a roadside, and takes refuge in the friendly aisles of Wal-Mart. Eventually, some eccentric but kindly strangers 'adopt' Novalee and her infant daughter, helping them buck the odds and build a new life.