The action thriller barely leaves an impression of any kind.

“Hunter Killer,” starring Gerard Butler, is just like its title: generic and immediately forgettable.

It involves a submarine – not the sandwich but the underwater variety – and a secret American mission to rescue the Russian president from a renegade Russian general hell-bent on starting World War III.

In a way, this story seems appropriate for a period in our history where, in some quarters, Russian President Vladimir Putin apparently is considered our buddy. While its timing might be suspect, the film makes the point that those from rival countries should be able to work together for a common good, like avoiding a world war. Amen to that.

Still, “Hunter Killer” barely leaves an impression of any kind. It’s a typical submarine thriller, with the expected creaks and leaks that threaten to sink the sub, the younger officer who questions the judgment of the captain (Butler), the close-call explosions that make the lights flicker and the crew stumble, and so on. There are also the familiar scenes (featuring Gary Oldman, Common and Linda Cardellini) of top brass and others making decisions and holding their breath back in a Pentagon war room.

As a bonus, in scenes reminiscent of “Lone Survivor” and similar movies involving ground missions, four Navy Seals are dropped off in Russia to get the president out of the general’s clutches and rendezvous with the sub to get him out of danger. These segments deliver the most action and excitement in the film, making it passable entertainment.

Everything finally comes to a head in a far-fetched finale.

Spoiler alert: The world survives.