Geiger once worked aboard the Seabourn Legend, a cruise ship whose autopilot system he designed himself. However, he was eventually fired after he got sick from copper poisoning. Geiger, seeking revenge, hacks into the ship's controls and sets the ship to crash into an oil tanker, killing everyone on board, including Annie and her new boyfriend Alex Shaw.
Alex suspects that Geiger is up to no good and attempts to thwart his nefarious plans, but Geiger escapes his clutches and takes Annie hostage on a small boat. At the end of the film, Alex saves the ship from destruction and goes after Geiger, who is about to escape in a seaplane. Using a speargun, Alex catches up to it and rescues Annie just as Geiger loses control of the plane and crashes into the top of the oil tanker. He is unharmed by this, but as he laughs maniacally, a spark ignites in the engine which blows the plane to pieces killing him and ending his reign of terror on the crew and passengers of the Seabourn Legend. This then causes a chain reaction of explosions from one end of the oil tanker to the other, completely destroying it.