He ends up in a remote POW camp with 4 or 5 others, including Steve Zahn who was problems with his bowels, and the scientist from Lost who really does look sickeningly skinny in this one.
At night they all chained together by the crazy guards - but it's a good job he's a cracking little locksmith, so he takes off the chains and plans his escape. Wanting to pick the right time to get out and time it around the rainy season, he just waits ... and waits ... while they all grow thin and weak through a lack of food.
When they overhear that the guards are about to kill them, they escape that evening - shooting a few but leaving little Hornswoggle alive, but Faraday from Lost is a coward and doesn't follow through with the plan. Without shoes or stuff Faraday should have got, they split up and the Bale/Zahn tag-team head off into the jungle.
They walk around for days - until they bump into some angry villagers who unexpectedly chop off Zahn's head!! You won't see that one coming. Bale escapes but starts to grow a little crazy himself, hearing his decapitated friend's voice all around him.
Suddenly, while walking around aimlessly, a chopper flies by overhead. He hails them down, gets lifted out, and welcomed as a hero back on the aircraft carrier.