The Meg (2018) A rescue team led by Jonas Taylor is saving a group of sailors trapped inside a sunk nuclear submarine when Jonas sees the hull of the submarine being damaged by an unknown creature. Two rescuers are stuck in the damaged submarine and say their return to the rescue submersible will take a few minutes. Taylor leaves them behind because he is afraid they will all die if they wait. As they leave, the damaged sub explodes. Taylor's claim that a giant sea creature caused the disaster was dismissed by his teammate Dr. Heller, who believes Taylor was affected with pressure-induced psychosis and blames Taylor for the loss of their friends. Five years later, billionaire Jack Morris meets Dr. Minway Zhang at the underwater research facility Mana One, which Morris finances. Zhang and his daughter, Suyin, an oceanographer, are supervising a mission to explore what may be a deeper section of the Marianas trench, concealed by a thermocline cloud of hydrogen sulfide. The mission is being conducted by Lori (Taylor's ex-wife), Toshi, and The Wall in a submersible. The mission appears to be going well until a very large creature hits the submersible, causing it to lose contact with Mana One. James Mac Mackreides, another crew member at the station, suggests sending Taylor down to attempt a rescue, citing the similarity to his story. Despite Heller's objections, Zhang and Mac decide to travel to Thailand to recruit Taylor anyway. Suyin attempts the rescue herself, but a colossal squid intervenes. Before it can kill her, a massive shark kills it. Agreeing to help, Taylor reaches the trapped submersible, saving Lori and The Wall. However, when the giant shark returns, Toshi sacrifices himself by closing the hatch door and detaching the rescue vessel, allowing Taylor, Lori, and The Wall to escape safely while he diverts the shark's attention to his sub, causing it to be driven into a thermal vent, causing an explosion. Back at Mana One, the crew discovers that the shark is a Megalodon, the largest shark ever known, believed to be extinct for millions of years. Meanwhile Suyin's daughter goes to the large glass leading to a beautiful underwater view of the ocean, and sees the Megalodon through the glass, and is petrified. When Suyin comes down with Jonas, they see a whale being eaten alive by the massive shark. The crew then realize that it has escaped from the depths of the trench by swimming through a hole in the thermocline created by the thermal vent explosion, briefly raising the temperature enough for it to safely pass. The group decides to track and poison the Megalodon, which they succeed in doing. While injecting the Megalodon with etorphine, Suyin's oxygen mask gets compromised, but Taylor revives her with CPR. Despite initial success, Taylor comments that the teeth don't match up with the previous attack. Shortly after, a colossal Megalodon emerges from the water and kills The Wall, Heller, and Dr. Zhang, capsizing the boat and devours the smaller Megalodon. The surviving crew returns to Mana One in two dinghies. Morris announces that he has informed local governments and naval forces, but it is out of their hands. At nightfall, Morris attempts to destroy the Megalodon himself by ordering a helicopter crew to drop modified depth charges at it, citing that the creature's actions could result in lawsuits. He approaches the carcass of the supposed Megalodon in a boat but discovers it's a whale. When the Megalodon approaches, the boat accelerates, causing Morris to fall overboard and be eaten by the Megalodon. Taylor and the remaining Mana One crew discover Morris' deception and resolve to track and kill the shark, only to realize that it is en route to a crowded beach on the Sanya Bay. The Megalodon kills several beachgoers before the Mana One crew plays audio of a whale call to divert the shark's attention towards them. Taylor and Suyin attempt to destroy the megalodon with rigged torpedoes, to no avail, and in the process, Taylor's submersible is severely damaged. Taylor manages to cut the megalodon with parts of his sub and stab it in the eye with a harpoon. Due to the presence of blood, multiple sharks in the area notice the blood and devour the Megalodon, killing it. During the fight, Suyin was able to evacuate everyone to a boat where a Chinese couple is getting married. Taylor gets on the boat, and he and Suyin consider taking a vacation.