The desire to go back in time to change things -- or just to visit -- is so central to the experience of being alive and stuck in time that Timecop has a built-in power. It's a power the film, a satisfying science-fiction thriller, takes full advantage of.

Van Damme once again bends and twists his muscular frame to superhuman excess, but his Belgian tonsils have all the flexibility of the Himalayas when it comes to splurting out his one-liners.

Years of tireless persistence have begun to work in Mr. Van Damme's favor. It's hard not to enjoy his energy, even if his acting gifts still leave a lot to be desired. The fact is that he looks good, behaves affably and kicks with gusto, which is quite enough to satisfy the demands of Timecop.

Timecop, a low-rent "Terminator," is the kind of movie that is best not thought about at all, for that way madness lies.

Van Damme is compelling only when he takes his clothes off, which he doesn't do often enough here.