After being released from prison, Arthur continues his research aboard a cargo ship in the middle of the Pacific Ocean with a new expedition of scientists and his daughter Rachel. But soon the nightmare starts again...
Tension on the ship increases when they are about to announce the results of the DNA test to find the killer, and a crew member appears dead, and the machine smashed.
The crew lock Charlie in a cell accusing him of the murders, but his brother Oscar is determined to free him. Meanwhile, in the U.K. Maggie and her sister plan their revenge, but someone is stalking them.
After the death of his brother, Charlie has managed to break free and is out of control. The Alexandria is adrift, and Maggie is getting closer to finding what she's looking for.
