Season 4 Episodes

Episode Guide

Do You See What I See

Season 4, Episode 21 - Air Date: 12/6/2011
Episode Guide

One Giant Leap

Season 4, Episode 20 - Air Date: 9/19/2011
Episode Guide

One Small Step

Season 4, Episode 19 - Air Date: 9/12/2011
Episode Guide

This One Time At Space Camp...

Season 4, Episode 18 - Air Date: 8/29/2011
Episode Guide

Clash of the Titans

Season 4, Episode 17 - Air Date: 8/22/2011
Episode Guide

Of Mites and Men

Season 4, Episode 16 - Air Date: 8/15/2011
Episode Guide

Omega Girls

Season 4, Episode 15 - Air Date: 8/8/2011
Episode Guide

Up In The Air

Season 4, Episode 14 - Air Date: 8/1/2011
Carter must solve a bank robbery before the town floats away; Allison struggles with episodes of lost time.
Episode Guide


Season 4, Episode 13 - Air Date: 7/25/2011
Scientists compete to be on the Astraeus mission crew for the trip to Titan.
Episode Guide


Season 4, Episode 12 - Air Date: 7/18/2011
Fargo demonstrates the FTL device and Holly disappears causing a stir.
Episode Guide


Season 4, Episode 11 - Air Date: 7/11/2011
Episode Guide

O Little Town…

Season 4, Episode 10 - Air Date: 12/7/2010
Carter’s plans to visit family for the holidays are thwarted when he, Zoe and the rest of the town are trapped in Eureka by a glitchy electromagnetic shield – during a very un-Christmassy heat wave.
Episode Guide

I'll Be Seeing You

Season 4, Episode 9 - Air Date: 9/10/2010
Dr. Grant attempts to return to 1947 but when Carter intrudes, they both wind up stuck in the past under the threat of altering present-day Eureka once again.
Episode Guide

The Ex-files

Season 4, Episode 8 - Air Date: 8/27/2010
The gang begins seeing visions of people from their pasts, while the town seems to be collapsing around them.
Episode Guide


Season 4, Episode 7 - Air Date: 8/20/2010
Love is in the air as Carter gets fed up with Grant's pursuit of Allison, Zoe conceals her love and Henry courts Grace.
Episode Guide


Season 4, Episode 6 - Air Date: 8/13/2010
Carter's camping trip with Kevin becomes a little scarier than ghost stories by the camp fire when a malfunction with the AI at Global Dynamics may turn some of them deadly.
Episode Guide

Crossing Over

Season 4, Episode 5 - Air Date: 8/6/2010
Claudia Donovan visits Eureka to see if Fargo's promises of wondrous devices are true, but she finds herself in the middle of a mystery suitable for Warehouse 13 when objects begin to appear randomly around the town and GD, and it must be solved before there are deadly consequences.
Episode Guide

The Story of O2

Season 4, Episode 4 - Air Date: 7/30/2010
As Eureka celebrates Space Week, Dr. Ramsey unveils his cutting edge invention that could allow colonization of Mars.
Episode Guide

All the Rage

Season 4, Episode 3 - Air Date: 7/23/2010
Dr. Isaac Parrish, the brilliant director of the Non-lethal Weapons Lab, is feeling a little undervalued these days.
Episode Guide

A New World

Season 4, Episode 2 - Air Date: 7/16/2010
As the Founder's Day festivities continue, Carter and the others must accustom themselves to the new time line and how Dr.
Episode Guide

Founder's Day

Season 4, Episode 1 - Air Date: 7/9/2010
Dr. Grant, a former resident of the town, causes serious alarm with his unexpected return. His romantic interest in Allison Blake also causes significant friction with Sheriff Jack Carter.