The crew of USS Titan find themselves on the brink of World War 3 with Russia, when a naked stowaway appears in one of their torpedo tubes. The captain banks fears she may be Russian, but she's something far more dangerous.

It's Alex's 21st Birthday, but she's stuck at the amusement arcade on a late shift so her friends decide to surprise her, but a masked killer dressed as Mickey Mouse decides to play a game of his own with them which she must survive.