Wrath, clash … whatever.

If it’s something the Titans are up to, it’s going to be a lot of show and little go.

A completely unnecessary sequel to “Clash of the Titans,” which was a completely unnecessary remake, “Wrath of the Titans” has all the depth of a video game. In fact, it looks a lot like a video game, with monsters that would fit right into that venue.

Sam Worthington (“Avatar”) is back as Perseus, a demigod who is half-mortal and half-human. The son of Zeus, Perseus, in the earlier film, killed the monster known as the Kraken. Although Perseus has great strength and intelligence, he chooses to live quietly with his son Helius (John Bell, “A Shine of Rainbows”) as fisherman in a village.

However, things are not peaceful on Mount Olympus, where Perseus’ father, Zeus (Liam Neeson), is pretty much in charge. The gods are losing their powers because humans have stopped worshipping them, and they are losing control of the fierce Titans and their leader, Kronos, the father of Zeus, Hades (Ralph Fiennes) and Poseidon (Danny Huston).

Now, Hades and Zeus’ other son, Ares (Edgar Ramirez), the god of war, are on the side of the Titans and plan to betray Zeus and Poseidon. Zeus needs Perseus, as well as Agenor (Toby Kebbell), the demigod son of Poseidon, to help him. Perseus enlists the aid of Andromeda (Rosamund Pike this time around instead of Alexa Davalos), who is now the queen after he saved her from the Kraken.

I admit I didn’t see this in 3-D, but I don’t think the special effects will spruce it up much. There are a couple of interesting monsters, including one that breathes fire and threatens both Perseus and his son. I guess if you enjoy watching lots of crumbling structures, and, in fact, crumbling gods (which is what happens when they expire), plus a few big, lumbering monsters, you’ll be satisfied with this as entertainment.

There is no character development whatsoever, and even though the performers themselves are interesting, their characters are not. Billy Nighy, who’s always good for a little comic relief, has a scenery-chewing good time as Hephaestus, the blacksmith to the other gods, but he seems to be in a different movie from the other actors.

It’s a lot of swords, sandals and noise, and you’ll forget about it by the time you’re home from the theater.