In Arkham, Dan Upton is worried that his friend Edward Derby is being led into a cult like group by his new girlfriend Asenath Waite. Meanwhile, Inspector LeGrasse investigates a spate of bizarre killings around the town, in which the victims have been decapitated and drained of blood. LeGrasse believes the murders may be linked to a Cthulhu cult active in the nearby towns of Innsmouth and Dunwich - that was headed by Asenath's late father Ephraim Waite. As Edward begins to behave more and more strangely, Dan and LeGrasse go to Miskatonic University to seek the help of Professor Armitage an expert in weird cults and ancient myths.

A Chinese chef accidentally gets involved with a news reporter who filmed a drug bust that went awry and is now being chased by gangs who are trying to get the video tape.

An unprecedented series of violent tornadoes is sweeping across Oklahoma. Tornado chasers, headed by Dr. Jo Harding, attempt to release a groundbreaking device that will allow them to track them and create a more advanced warning system. They are joined by Jo's soon to be ex-husband Bill, a former tornado chaser himself, and his girlfriend Melissa.