The premise of the film is interesting, it is set in the future where the polar ice caps have melted and Earth just becomes a big ocean. People live in boats/floating structures. The start of the film was absorbing, and before you know it, half an hour would have past. You get to see the protagonist living his life in the sea, and start to learn what is required in this watery world. Around past the one and a half hour mark, the movie seems to drag as it struggles to keep the pace going but it picks up again right near the end, where all the explosions happen. One of the weak points is that they never explained the whole mutation thing. The protagonist is a mutation that had developed the ability to breath underwater through the use of gills. Apart from elevating the protagonist with abilities above the average human, no other explanation is given. The characters Enola and Helen are quite annoying from the beginning. Seriously, when you're on someone else's boat, you listen to them. Plus, I'm pretty sure that they will know what to do since they have survived living as a drifter for so long. Other things that feel weird is the antagonists' supplies of ammo, machinery and oil. Considering that everything is below water and these are consumables (and that the world has been flooded for a while now), it's surprising to still find they have ample amounts of these (plus a lot of tin food!!). Anyway, this was a decent film, even at such a long length, it manages to keep your attention.