This drama about the Israeli secret service's attempts at avenging the terrorist murderings of their Olympic athletes in the '70s might not leave you on the edge of your seat, but definitely makes for good watching, and is worth the rental price. (Rod Steiger makes a good showing as a retired Jewish spy!)
Basically, Israeli intelligence (called Mossad) carries out an assassination campaign against the alleged terrorists with varying success. Made-for-TV action sequences have a tendency to be a trifle stale, but in this movie they actually come across with a sense of realism, if not necessarily "edge-of-your-seat" exciting (unlike Hollywood which, while fun & exciting, is about as realistic as the National Enquirer).
This movie will be much more enjoyable to watch if you have at least some background/interest in modern Israeli history, otherwise it's just typical made-for-TV fare...