Indeed, in the first part the acting is awful. Fortunately this gets better. It all looks pretty old too, so the film itself lives up to my expectations based on the cover. The story is alright, but again I got a time-travelling film.
In the present time a group of investigators travel to the south pole to find meteorites. These unearthly remnants contain a virus which in two centuries almost wiped out the entire human race, so a group of people are sent back in time to prevent the virus from being found. Of course there are bad guys on board who have other plans changing the past. What evolves is an icy action thriller playing on a ship that sailed out to find the meteorites while the time-travelers try to prevent them from bringing the virus to inhabited parts of the world.
Indeed, the film is not very good, but neither did it bore me stiff or annoy me.