A mysterious presence in the woods outside town first sparks fear, then prompts an investigation which quickly involves all of Eureka's eccentric denizens.

Video of a beast outside Eureka spurs Carter and Taggert into action.

Carter, Lupo and Taggart search the woods for the beast

Allison Blake has a frightening run-in with the creature.

An autopsy of the creature leads to a shocking discovery.

Carter finds the "missing link" to the mystery monster.

Carter finds the "missing link" to the mystery monster.

See the characters from America’s smartest little town like you’ve never seen them before, as you get ready for the all-new season of Syfy’s original series, Eureka. And this year, “the equation has changed.” Yes, Eureka is going through a major transformation, and as you’ll see, its inhabitants might never be the same.

It's Founder's Day in Eureka and everyone is in the spirit of the celebration until Jack, Allison, Henry, Jo and Fargo are transported back to 1947 where they meet some familiar faces along the way. Will they be able to get back to 2010 or will they be stuck forever in 1947 where Eureka is not a town, but an Army base.

When mites threaten to take down Global Dynamics, Jack is called into action since Jo is in the middle of training. Allison is struggling with the fact that everyone things that her brain doesn't work and she is determined to prove that she is back in action again.