for a show which be all about an alien invasion and it be a very damp squid and which be more what the alien turn out to be . there be lot of mystery and lot of intrigue about the light in the water and but it just drag on and on and nothing ever happen and after 12 15 episode and it wasn not worth the bother . look at lose example and over 2 season and more and more be reveal which pose more and more question . in invasion there be just more and more question about nothing . after 12 episode there be little threat from any alien and and there be still no sign of them . invasion be a bit of an exaggeration and more like be come to your planet but we would not do much and fiddle with a few people and lurk around in the water a bit on the whole you wont notice u but probably a bit snappier so it fit in the tv listing .