Season Two
While helping refugees from Nasya, a planet under Goa'uld attack, Sam Carter is infected by a larval Goa'uld as she tries to revive a wounded man.
None of her team-mates realise what has happened, until Cassandra senses the Goa'uld in her.
Sam is detained in a cell, the Goa'uld claims to Jolinar of Malkshur, a member of the Goa'uld resistance, the Tok'ra and hid in Sam's body to escape from a Goa'uld assassin or Ashrak.
The Ashrak is hidden amongst the refugees and manages to gain access to the SGC, will they be able to stop him before he endangers Sam's life?