Ashfall

It not only is a disaster movie, it is also part comedy. The CGI, and there is a lot of it, it decent and the movie is not sloppy. But it seems Korean movies have to throw in a lot of subplots, and this is no exception. A major volcano erupts, followed by a major earthquake. In the country is an American scientist who is studying the mountain, and he points out below the magma chamber that erupted, there are two smaller ones, but below those is a huge magma chamber, and it is erupts, it will be devastating for the entire peninsula. His plan is to detonate a powerful bomb placed in one of the mining shafts in the mountain which will divert the pressure that is building. Of course, since he cannot guarantee success, it is rejected. Also, it would require nuclear bombs, and it so happens there are six nuclear warheads in North Korea that are about to be surrendered to the US making the peninsula nuclear free. But someone believes in him, and an off the books operation is mounted. Two planes, one with commandos and one with the scientists. En route, one plane crashed, leaving the scientists to do the mission. Naturally, the person who knows where the warheads is Ri, a North Korean held in prison. So he has to be liberated, taken to where the warheads are. And the US gets wind of the operation, and is determined to stop it. And the subplots only are getting started. Still, it is entertaining enough.