Terrorists have seized the British ambassador (Robert Harris) to an unnamed Scandinavian country, and are counting on an associate named Petrie (Ian McShane), who's commandeered a jet, to get them to safety. The main character standing in their way is no-nonsense security chief Colonel Nils Tahlvik (Sean Connery). The passengers on the jet have cause to be concerned, as Tahlvik is not willing to play the terrorists' game. He's going to try to foil them, no matter what it takes.
Although a somewhat forgotten thriller 43 years later, it's certainly still topical enough to have some resonance. It's not particularly *exciting*, or exceptional in any way, but it tells an okay story in capable fashion. Its main asset is its forward momentum, as it races towards the finish line with no filler to speak of, and wraps up in just under an hour and a half. The excellent soundtrack by the always reliable Jerry Goldsmith is a big help in keeping it watchable. It gets off to a grand start with a couple of satisfying explosions, and delivers some twists along the way. It was largely filmed on location in Norway (the wintry atmosphere is most enjoyable), with interiors done at Britains' famed Shepperton Studios.
This viewer wouldn't necessarily consider the performances of Connery and McShane to be "indifferent". Yes, they've been better before and since, but the scenario does benefit from their presence and professionalism. The cast is mostly (and obviously) British, even in some of the Scandinavian roles, and they get the job done adequately.
Largely routine, and forgettable, but entertaining to watch.
Six out of 10.