The United States Navy has spent billions of dollars on one-use weapons that have a tendency to miss their mark. In response to this problem, the Naval R&D unit has set out to create some biological weapons that have multiple uses. One of these first experiments is Operation Whale/Shark - a gene-spliced hybrid of a great white and an orca. They bring in Dr. Steve "Bench" Hawthorne to train their new weapon to make it the ultimate killer. Can Bench make a pure-blood predator be a trained, targetable weapon or will the beast's instinct take over and make it an unstoppable killing machine.
After the attack of the Whale Shark, Dr. Morgan Velasquez struggles with night terrors. Thankfully, her friend, Commander Patrice Franke, decides to have her tag along on a simple mission to the Arctic to help her get her mind off things. Little do they know, the sinister Dr. Howard Mathis has a new monster for them to play with. As the two try to get to safety from one monster, they find a few secrets that the Navy has left hidden in the frozen north--secrets the Navy wants to forget. Will they stop this new monster, or will the Navy's secrets kill them before they can?