A group of teens discover secret plans of a time machine, and construct one. However, things start to get out of control.

Medical student Ted Grey graduates at the top of his class and quickly joins an elite pathology program, whose top students invite him into their circle. There he uncovers a gruesome secret: They play a game in which one tries to commit the perfect, undetectable murder, then the others compete to determine the victim’s cause of death.

In the midst of World War II, the battle under the sea rages and the Nazis have the upper hand as the Allies are unable to crack their war codes. However, after a wrecked U-boat sends out an SOS signal, the Allies realise this is their chance to seize the ‘enigma coding machine’.