Introduction

The fourth season of Stargate Atlantis, an American-Canadian television series, began airing on 28 September 2007 on the US-American Sci Fi Channel.

The fourth season concluded after 20 episodes on 07 March 2008 on Sci Fi.

The show itself is a spin off of its sister show, Stargate SG-1.

The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers.

Amanda Tapping (Col. Samantha Carter) joins the cast as a regular for 14 episodes, Jewel Staite (Dr. Jennifer Keller) was a recurring character for eleven episodes, while regular cast member Torri Higginson (Dr. Elizabeth Weir) was a recurring cast member for four episodes.

Other season four regular cast members include Joe Flanigan, David Hewlett, Rachel Luttrell and Jason Momoa.

Outline (Season 04)

Amanda Tapping (Col. Samantha Carter) joined the cast as a regular for 14 episodes, Jewel Staite (Dr. Jennifer Keller) became a recurring character for eight episodes, while regular cast member Torri Higginson (Dr. Weir) became a recurring cast member for four episodes.

Outline (Episode)

Following the discovery of the location of all the Replicator ships in the galaxy, the Daedalus and the Apollo are sent to Atlantis to attack them.

Attacks by the two battlecruisers and their new Asgard weapons force the Replicators to flee to their homeworld.

McKay is able to come up with a plan to use a Replicator he has created to turn the other Replicators into a harmless mass.

Needing more ships, the team and Todd work to recruit the Wraith to the battle, getting seven hive ships.

Larrin of the Travellers arrives after the meeting and Sheppard is able to get her to add six more ships to the fleet, including the Travellers’ Ancient warship.

After modifying their plan due to input from McKay’s Replicator, FRAN, the allied fleet attacks the Replicator homeworld. McKay’s plan works, but the final phase, detonating the Replicator ZPMs to implode the mass, fails.

Carter and McKay realise that the mass can be made to sink to the planet’s core where the heat and pressure will implode it.

As the surviving ships flee, the planet explodes and the Replicators are destroyed. However, a single Replicator warship is seen prowling the debris commanded by Doctor Elizabeth Weir who is pleased that they can finally get on with their plan without worrying about the other Replicators.

Stargate Franchise

You can find a full index of the Stargate Franchise here, whilst clicking on the following links for films, documentaries, and TV series (all and Stargate Atlantis only).

Production & Filming Details

• Director(s): Andy Mikita.
• Writer(s): Martin Gero.
• Release Date: 04 January 2008.
• Running Time: 43-45 minutes.
• Country: US.
• Language: English.