Deep Blue Sea - Plot

Plot

The Movie opens with a scene with four teenagers having a party on a boat out in the middle of the Atlantic Ocean. Suddenly, the boat begins to rock back and forth, causing the stereo to slide into the water from the force of something bumping the boat from below. The hull of the boat explodes with a 35-Foot mako shark emerging from beneath it, attacking the hull and ripping it to pieces. The teenagers fall into the ocean and the mako shark races towards them, intent on devouring them when it is stopped by two harpoons to its side. A man on another boat is seen shooting the shark as the frightened teenagers look on.

Back on land, Dr. Susan McAlester has been called to meet with the president and a corporate executive of Chimera Pharmaceuticals to discuss the escaped shark's attack. Russell Franklin at first has no need for her project anymore, but after giving it some thought decides to return with McAlester to Aquatica, a former submarine refueling facility. Franklin's company has turned it into a science station to study sharks in a search for a cure for Alzheimer's disease and he goes to check on their progress.

At Aquatica they meet Janice Higgins, a marine biologist. McAlester leaves Franklin with Janice and goes off, and Janice explains to Franklin what the scientists do at Aquatica. Meanwhile, the Shark Wrangler, Carter Blake is swimming in a pen with a Tiger Shark. The shark begins to stalk Carter and Franklin becomes concerned. The shark moves in for an attack but Carter expertly flips onto its back and managing to extract a license plate from its mouth before releasing it. Franklin and Janice soon see Dr. Jim Whitlock who, along with McAlester is heading the experiment.

Night comes and Dr. McAlester is called to the surface level for an emergency by the tower's secretary, Brenda. Concerned, as she sees emergency flares go up, she suddenly turns around as shouts of "Happy Birthday!" come at her from above from the skeleton crew: Brenda, Carter, the cook Sherman "Preacher" Dudley (LL Cool J), Jim, Tom Scoggs and Franklin. During the party Carter comes up to her and tells her the three test sharks are becoming more "pack-like" and that they'll only eat other sharks, as they had expertly synchronized an attack on the same tiger shark and devoured it. McAlester brushes it off, and goes away leaving Carter and Tom alone.

Dawn breaks and a storm is brewing. Down below the whole crew is uptight and nervous as the day of testing arrives. Carter goes into the water to retrieve the biggest of the three sharks from her pen but is attacked by the other two smaller sharks who synchronized. their movements. Startled, Blake raises his gun to mock-shoot the sharks, but they quickly back off and swim away much to the surprise of the others who are watching Carter. Then the surveillance cameras go out one by one and it is quickly apparent that the two small sharks have bitten and severed the cameras so the scientists could no longer see Carter or the sharks. Tom tries unsuccessfully to get the cameras working as Carter, now inside the larger shark's pen, is being stalked by the shark. The shark attacks Carter's dive vest as Carter shoots it and loads it onto the boarding platform. As he and the shark appear the team quickly maneuvers into place to begin their testing. The team manages to remove brain tissue from the largest shark and Dr. McAlester sees for herself that the tissue can reactivate the dead brain cells of an Alzheimer's patient. Pleased, Franklin congratulates her and her team as Jim takes out a cigarette and goes over to the still knocked out shark who then suddenly wakes up and attacks Jim, severing his arm. McAlester manages to lower the platform back into the water, saving the shark from being killed by Carter.

The others load Jim into a helicopter to be flown to a hospital. But the crew of the helicopter loose the grip on the rope. It unravels and Jim is plunged back into the water, then grabbed by one of the test sharks who begins to pull the stretcher, and the helicopter towards the research structure, unbeknownst to McAlester and the rest who have ran back down to the laboratory in order to see what was happening. Tom manages to get a computer image of the helicopter just in time to see it be pulled straight into the tower, igniting gasoline fires and exploding, killing everyone including Brenda. The team only hears the explosions, then Franklin sees the silhouette of something coming towards them, which quickly turns into Jim in his stretcher being pushed by the largest Mako test shark. The shark throws Jim at the glass window, shattering it and causing the ocean water to quickly flood the room.

The rest of the team barely escape and decide to try and get out. They notice that the facility is quickly flooding, so they decide to get to the top through the bottom via submarine. Below them, Preacher also hears the explosions and begins to ascend from the bottom. He unknowingly decides to take the stairs, which have flooded and is pushed backward along the relentless flow of rushing water. Unknowingly to everyone, the three test sharks have slipped inside along with the water and are now inside the flooding research facility. Franklin notices a steel door being rammed hard be something on the other side and expresses his concern to Carter that it could be one of the sharks trying to bust through the door to get to the scientists. Carter agrees and Franklin rounds upon McAlester and asked what she did to those sharks. McAlester confesses to her and Jim using gene therapies to increase the sharks' brain masses as their original brains were too small to harvest enough protein (therefore violating the "Harvard Genetics Compact" and also making the sharks smarter.) The rest of the team, not knowing this before, are shocked and furious.

The group manages to make it to the chamber with the submarine but find the sub damaged beyond repair, to which the scientists agree that the sharks must have sensed their escape plan and destroyed it purposefully. They begin to argue until Franklin calms them down. During his speech he is grabbed by the largest shark and is eaten. The group, mortified, decides to take the maintenance ladder to the surface. During which the ladder collapses and Janice falls into the water and is eaten by the same shark who manages to get through to the scientists when they started climbing.

During this, Preacher is wading through the flooded hallways when he sees a shark coming for him. Terrified, he swims back to his kitchen where the sharks meets him. He hides in his oven, but the shark manages to make the switch turn on, starting the oven and to cooking Preacher alive. Preacher manages to dent a hole in the ceiling, climb up and out of the oven and blow up the shark via a gas explosion. He then appears at the same spot where McAlester and the survivors are still stuck on the ladder and saves them. Tom and Carter decide to try and re-route the generators to drain a stairway so they could reach the surface while McAlester and Preacher stay behind. Presently, McAlester goes back to her room to retrieve the data from the successful experiment. Meanwhile Carter and Tom have turned the generators back on, but Tom is then attacked and killed by the largest shark who then attacks Carter who barely escapes. McAlester, having found her data, is preparing to leave when she is attacked by the other smaller shark. She manages to kill it by electrocuting it, but in the process dropped her data in the water so it too got electrocuted. She soon meets back up with Preacher and Carter and they decide to swim out to freedom.

On their way up, the third and biggest shark sees them and as they all break the surface attacks Preacher. He manages to stab it in the eye with his crucifix and McAlester fixes him up. She and Carter see that the biggest shark is ramming the fences, attempting to get free and into the unconfined spaces of the ocean to which McAlester states that they have to kill her before she escapes. Agreeing, Carter makes a harpoon gun that will make the shark explode on impact, but can't fire it because the shark is too far away. McAlester slits open her hand and dives in to get the shark to move closer, which it does. McAlester tries to get back onto land but the shark grabs her and eats her. Carter then grabs the sharks dorsal fin and proceeds to distract it. However, the shark has moved into range for Preacher to shoot her in the dorsal fin. As the shark manages to escape through the hole, he ignites the battery and the shark blows up. The movie ends with Preacher and Carter sitting on a sinking piece of Aquatica as the next shift of workers comes into view over the horizon. Carter decides to quit his job at Aquatica.