The Lucian Alliance comes to the ''Destiny'', prepared to take the ship by force.

Final appearances of Jack O'Neill, Daniel Jackson, and Samantha Carter.

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!Tropes
* CommutingOnABus: Jack O'Neill, who will continue to oversee Homeworld Command during Season Two and issue orders off-screen (but not actually appear).
* EarthShatteringKaboom – once the stargate locks onto the ninth chevron, the naquadria core of the Lucian Alliance's planet starts to explode. This is the second time dialing to ''Destiny'' has made a planet go boom.
* EndOfAnEra: Meta example. "Incursion, Pt. 1" marks the final appearances of Jack O'Neill, Daniel Jackson, and Samantha Carter in the TV franchise. This concludes a 13 year run for RDA, Michael Shanks, and Amanda Tapping as their characters (although all three actors would later reprise their roles for the ''Stargate SG-1: Unleashed'' video game).
* MythologyGag: Following the tradition set by the Season One Finales of ''SG-1'' and ''Atlantis'', the first Season of ''Universe'' likewise ends with an attack upon the team's home base (''Destiny'' in this case).
* OhCrap – the Lucians coming through the stargate