It is a perfect match of story and director. Guy Ritchie is at his best in high-energy stories of very attractive men with mad fighting skills and no hesitation in using them. In between shoot-outs, explosions, and high crimes, casually toss off understated quips and references to the playing fields of Eton. This is a true story with exactly those components, plus a ton of nameless Nazis and one guy who is described as even worse than a Nazi, so killing them is as close to guilt-free as possible. He has a lot of fun with it.

The group of highly skilled renegades are described in the book that inspired this film as the first special forces military operatives. And we hear the British commanders explain that if Hitler isn’t following the rules, they won’t either. “They’re all bad,” warns one. “They’ll need to be,” responds another.

Of course that means they do not obey orders, either, but that’s what you get when you get a man out of prison to put together a group of cut-throats and renegades, one who is also in prison, but in his case being tortured in a German POW camp. Their mission is to go to the Ivory Coast and sink the supply ship that services the U-boats in the Atlantic Ocean.

On to the strategy, the revising of the strategy when things go wrong, the stunts, the shoot-outs, the action-banter, remix and repeat, plus a thumpy score with some cowboy twang by Christopher Benstead.

Cavill, formerly clean-cut and dashing as Superman and in the under-appreciated “The Man From UNCLE,” is even better in scruffy mode here as Gus March-Phillips. “Reacher’s” Alan Ritchson and “Crazy Rich Asian’s” Henry Golding also seem to be enjoying a chance to have some fun with their roles. The team needs some back-up help from undercover operatives, which is where we get to enjoy Babs Olusanmokun as Heron, who runs the local nightclub and “Third Body Problem’s” Eiza González as Majorie Stewart, sultry singer, sharpshooter, and, as a cover, gold smuggler.

And then there is the bad guy, described by Heron as “the only guy worse than a Nazi,” the cruel local commanding officer, (Til Schweiger), providing additional menace and urgency as the final operation becomes complicated and chaotic. Ritchie gets lost in the bombast and is too cheery about the carnage. He has no time for character or emotional heft beyond our feelings based on what we know about the history. There’s no substance, but it is entertaining.

Worth mentioning: a senior office in charge, played by “The Princess Bride’s” Cary Elwes, is known as M and one of the junior officers is a young Ian Fleming, played by Freddie Fox. Yes, that Ian Fleming, and the closing credits tell us that he got some of his ideas for James Bond from this experience.

Parents should know that this is an extremely violent film set in wartime, with a lot of guns, knives, arrows, and explosions, some torture, prostitutes and implied sexual abuse, with many disturbing and graphic sounds and images. Characters use strong language and there is drinking and drunkenness.

Family discussion: What rules work during a war? Why aren’t all military operations conducted this way? How is war today different from this story?

If you like this, try: the book by Damien Lewis (the writer, not the actor) and films like “The Dirty Dozen” and “The Guns of Navarone”