Some thoughts on surviving captivity. This article is primarily written in the context of becoming an enemy prisoner or POW. The tactics described, however, are also useful in shorter term criminal abductions or hostage situations in foreign countries.
OK, You Survived…but What If You Have Been Captured?
On a similar topic, This is a good primer (with some quick videos) about escaping from various types of restraints. Check them both out.
How to Get Out of Handcuffs and Other Restraints