When Ernest P. Worrell (Jim Varney) leaves his job as a golf ball retriever at a local driving range to join the Army reserves, he has no intention of actually fighting; all he wants to do is drive the big, green trucks. But the newly minted Pvt. Worrell is in for an awfully big surprise. His unit is soon dispatched on a peacekeeping mission in the Persian Gulf, and the future of the world depends on Ernest's competency.