Stargate SG1 - Season 2

In the second season's 22 episodes, Samantha's estranged father is dying of cancer, but her obligations turn her into saving a member of the Goa'uld-opposed Tok'ra who is also dying. The central story arc takes a dramatic turn when a young boy appears to warn that some survivors of a Goa'uld attack now vow to destroy all human beings.