Thrill Seekers is quite the big-thinking little adventure, with a plot worthy of early Ray Bradbury or Isaac Asimov, but with more explosive action. Director Mario Azzopardi's chops are razor sharp in this breathlessly paced, entirely entertaining science fiction romp that should have even non-sci-fi fans engaged to the end. The gaping hole in the plot (the people of the future didn't know about Merrick in the first place?) and Martin Sheen's cameo (on a static-covered computer monitor) can be easily forgiven. Casper Van Dien, who usually acts using nothing but his elongated chin, isn't quite the dim-bulb puppy of previous outings, which is vital, because one false note brings this entire puzzle cascading into cinematic oblivion. But he's OK, and so is the movie. Those expecting another Back to the Future will be only slightly disappointed, but those expecting nothing more than a captivating fantasy that makes the most of its TV movie budget (it was produced for TNT) will be roundly rewarded.