Earth's Stargate Program isn't the only group in the Milky Way that's interested in the Ancients' Destiny. What's worse, this long-time foe may have a spy among those closest to the Icarus project.

An enemy from the Milky Way has boarded the Destiny and has taken hostages. Is it possible that they know how to get back or have they stranded themselves as well?

As Young and Camille attempt to resolve the hostage crisis with Kiva, Destiny suffers from power fluctuations and blackouts due to its proximity to a binary pulsar.