Tentacles

In Solana Beach, California, a baby named Jane vanishes from a coastal park, alarming the local community. Her disappearance raises fears and questions, setting the stage for the investigations that follow.

A local man is mysteriously pulled from his boat in the marina. Later, he is found dead, stripped of all tissue, intensifying the mystery surrounding the coastal area.

Sheriff Robards wants to keep the investigation of Jane's disappearance and the death quiet to avoid public panic. Yet, one officer questions whether the deaths may be linked to a nearby underwater tunnel construction project.

Veteran journalist Ned Turner works overnight on his story about the suspicious deaths. His sister, Tillie, expresses her concerns about his health and overworking himself amidst the turmoil.

Mr. Whitehead, the president of Trojan Inc., reads Ned's article and questions the project manager, John Corey, about any link between the company and the deaths. Corey firmly denies any connection, leaving the mystery unresolved.

At the coroner's office, the medical examiner reveals to Robards and Ned that both skeletons were stripped clean with no explanation. This unusual detail suggests something far more sinister at play.

Ned visits marine biologist Will Gleason, who is recovering from decompression sickness. Despite his condition, Ned learns of the urgency for investigating the deaths, emphasizing the risks involved.

Gleason's divers attempt to inspect the Trojan site but face a tragic turn when they are ambushed and killed by a giant octopus. This event escalates the stakes, making the threat more palpable.

During a dive, Will and his assistant discover numerous dead fish on the ocean floor. Will hypothesizes that the illegal use of high-pitched frequencies by Trojan may be causing devastating effects in the marine ecosystem.

Vicky, along with two men, searches for her missing sister Judy, who has gone missing during a sea cruise. Tragically, they fall victim to the octopus, further showcasing the threat lurking beneath the waves.

Tillie registers her son Tommy and his friend for an open-water yacht race as discussions about the recent deaths continue. Robards and Ned analyze the connection between radio usage and the fatalities, raising alarm.

The junior yacht race begins, but Robards expands the danger zone as tensions rise over recent events. Despite warnings, the race descends into chaos as boats capsize in high winds, emphasizing the immediate danger they are in.

Will and Mike decide to enlist the help of their trained killer whales, Winter and Summer, to combat the octopus. The unexpected team effort adds an unusual yet hopeful element to the dire situation.

As Will and Mike dive into the depths to confront the octopus, a fierce battle unfolds. With the whales' assistance, they manage to defeat the octopus, showcasing nature's unexpected allies in times of crisis.

After the confrontation, Will contemplates his future, considering a safari in Africa. However, the return of Winter and Summer serves as a bittersweet reminder of their bond and the adventures they shared.