An episodic series in the Galactic Command franchise, Echo Squad is a series of aerial/space action combat titles based on the adventures of a group of Elite Force pilots assigned to the Excalibur carrier. Players can engage in combat with a full range of human pilots thanks to a multiplayer mode that supports up to sixteen players in a particular mission, battling across the cosmos in deathmatch and team deathmatch combat as well as co-op modes. Each episode has you commanding a different fighter wing.

Many years have passed since the Gammulans invaded, leaving civilization completely devastated. In their wake, they left a splintered Galactic Command (GALCOM) alliance still engaged in a fierce battle with insurgents who oppose the alliance. Stretched to the limit Galactic Command scientists developed a new space craft that is lighter, faster and more powerful than any before it...

Episode One begins with this new Engstrom class carrier's first day in a live combat engagement. The player's Echo fighter squadron of fighters has been assigned to the WildStar battle fleet led by the GCV-Excalibur in operations against the Insurgent uprising. As an Elite Force Pilot and leader of the Echo fighter wing assigned to IIS starstation in orbit around Titan, your fighter wing is tasked with leading a series of defensive and offensive missions against the Insurgents occupying Sol territories. Missions take place in space and on the surface of planets and range from basic escort and recon missions, to highly engaging and dangerous tactical strike missions.