While not as bad as it has been made to be (I have seen MUCH worse), this is still a very lame movie. Basically a rehash of Siegel's "Coogan's Bluff", with the main difference being that Clint Eastwood's hat has more charisma than the whole of Joe Don Baker, an unappealing actor if there was one.
However, Venantino Venantini is great (and great fun) as the bad guy, sort of a budget Vittorio Gassman. He is the main reason to sit through this steampile, as the rest of the cast deliver mostly terrible acting, specially the girl. Poor old Rossano Brazzi, hard to believe he was once a romantic lead (watch "Mondo Cane" to see him running away from women). Looking here like a second-tier Ben Gazzara, he's given next to nothing to do. It's all Joe Don's show, unfortunately. And all of it scored to generic 80's "action movie" music that couldn't be more boring.
Greydon Clark can make good B-Movies ("Without Warning"), but here he trips, falls, breaks his nose and loses three teeth. Well, at least the Malta locations were nice, and there's Venantini to try to save the day. 3/10.