An investor named Dick Stoneman has an appointment with Elizabeth about selling a boat they may be interested in. He's accompanied by June, a red-head who says she's his secretary. They don't seem to get along. Once they are at the Foundation for Oceanic Research she stays in the lobby while Stoneman goes on a tour-and wanders into a nearby lab where Mark Harris is in a tank trying to communicate with some Koi. She immediately lightens up because she likes him.
When Elizabeth and Mark go to a pier Stoneman kidnaps her while he's in an arcade. He tries to stop them but it knocked out and placed in a shed. While she's being flown away to an island off of Brazil, Mark struggles to survive until Miller and M.C find him. He immediately jumps into the water to replenish his energy. They report Elizabeth's disappearance and discover that that Stoneman uses a few aliases-and that he's kidnapped at least four other people, all scientists. When we see where he's taken Elizabeth it's to a secret base on a tropical island where other scientists are working. Elizabeth says she will not cooperate at all so they take her to the sauna, where she gains an entirely different perspective. There's something in the natural water that affects people and here it makes them compliant and helpful. The scientist in charge of the facility is a young woman named Dr. Smith. She has built an Ark, of sorts, which contains genetic material and room enough for a few people to go to another planet and start over. After the Cetacean finds the island and Mark goes to rescue Elizabeth, Dr. Smith tells him that she wants him to join her on her journey. She declines and takes off in the rocket by herself.
This fourth movie is a lot like the very first, with Mr Schumer and his mind-controlled scientists wanting to start over and create a better world. My question is why not try to fix this one? However, this installment is better than both THE DEATH SPORES and DEATH SCOUTS.