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Eureka: One Giant Leap

In the Season 4 finale, Carter and Jo respond to a mysterious attack on the presidential convoy; good-byes are exchanged before the Astraeus mission is launched; and cosmic anomalies threaten Eureka.

Source: Syfy

Episode Info

Episode number: 4x20
Airdate: Monday September 19th, 2011

Alternate Airdates:

UK (Syfy) Oct 11, 2011
DE (Pro7) Jan 30, 2012

  • Currently 7.6/10
7.6/10 (12 Votes cast)
Guest Stars
Matt Frewer
As Jim Taggart
As Senator Michaela Wen
Felicia Day
As Dr. Holly Marten
Tembi Locke
As Grace Monroe
Chris Gauthier
As Vincent
Trevor Jackson (1)
As Kevin Blake
Wil Wheaton
As Dr. Isaac Parrish
Dave Foley
As Dr. Plotkin

Co-Guest Stars
Wesley Salter
As Technician
Jackie Gonneau
voiced GD computer voice
Rif Hutton
voiced Astraeus computer voice
Leo Chang
As GD section 5 guard
Dan Clarke
As FauxBama
Main Cast
Colin Ferguson
As Jack Carter
Salli Richardson
As Allison Blake (as Salli Richardson-Whitfield)
Joe Morton
As Henry Deacon
Erica Cerra
As Josefina 'Jo' Lupo
Neil Grayston
As Douglas Fargo / Voice of Sara
Niall Matter
As Zane Donovan


The scene opens and it is Launch Day in Eureka. Allison runs up to Jack and says that she is sorry that she ran out on him this morning and he they exchange flirty banter. Fargo and Holly talk to each other and test out the equipment. Fargo talks about their relationship and he suggests that their “first time” be on Titan. Allison hosts a meeting and has Zane lie down. She tells the crew that they are going to be able to rest easy when they are on Titan. Dr. Parrish says that his experiment is going to be able to help them while they are in space and Fargo gives him a hard time about how his experiment is going to Titan without him. They argue and Allison tells them to stop it. Jo goes up to Allison and asks her if she can talk to her and keep it between them. She says that they can. Grace goes up to Henry and asks if six months is not going to be too long. Henry says that it is going to be fine and they kiss. Jack comes in and catches them and says that they have science-y stuff to do. They fire up the FTL for a test drive and everything goes right. Senator Wen comes up and says that they have special guests. ..

Read the full recap
Warning: Eureka season 4 episode 20 guide may contain spoilers
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