One Giant Leap...

Name: One Giant Leap...
Director: Matthew Hastings
Released: 2011-09-19
Duration: 44 min
Rating: 8.6
Cast: Matt Frewer, Chris Gauthier, Felicia Day, Tembi Locke, Wil Wheaton

S4 E20 September 19, 2011 0h 44m ★ 8.6

Source:

Overview

In the season finale - It's chaos in Eureka when an energy beam rips through main street but the Astraeus launch must go on...with or without Eureka intact.