The meg is all about a prehistoric huge kind of shark the megalodon.its a sci fi movie. its all starts with a few marine biologist jump into sea with modern machine as they in search of going below 13000 feet in sea. after going below this they just found a new undiscovered world but suddenly something big hits there submarine and they got struck below there. now there comes the time for the entry of the hero . the project head request the hero who had lost his job because of this giant fish to come and save those scientist struck in the deep sea . the movie starts to light up from there . then heros saves them but the meg came from deep sea to surface now new problem came out.than everything starts like same old sharks movie sharks kill them and they kill shark. the movie failed to reach my expectation . just one time watchable movie. the chinese cute little girl really impress with her acting . throughout the move I never get bored of . but story is not so amazing as I expected.