Stargate SG-1 Season 2, Vol. 4

EPISODE 15: "A Matter of Time"A black hole swallows the SG-10 team, and O'Neill is sent on a rescue mission. But the hole's gravitational pull grows stronger, drawing the Stargate toward it and soon threatening to destroy Earth. Will O'Neill find a way to stop this super-destructive force?EPISODE 16: "The Fifth Race"While studying alien wall inscriptions on another planet, O'Neill peers into a viewer that unleashes ancient knowledge into his mind. But the information is taking over O'Neill's brain like a cancer, and the SG-1 team must reverse the process before his mind is completely reconfigured.EPISODE 17: "Serpent's Song"SG-1's arch-enemy Apophis is dying and seeks sanctuary with O'Neill. But what he really wants is a new host in exchange for his knowledge of the Goa'uld. Will O'Neill grant his request or send him back to the Goa'uld to face his fate?EPISODE 18: "Holiday"Jackson's body is swapped with that of an old Goa'uld enemy named Ma'chello. As Jackson lies dying in the alien's aging body, O'Neill and Teal'c accidentally switch forms too Â? and unless the alien is captured, all three will be trapped in their new bodies forever.