Season 1 Episode 12 - Bloodlines

After a failed experiment to remove Teal'c's symbiote and maintain his body with drugs, he reluctantly asks Hammond and the others for assistance - he has a family he left behind to join SGC, but his son Rya'c is scheduled to receive a Gou'ald larve, which will make him dependent on the alien symbiotes. He asks SGC for assistance and when they refuse, he tries to go on his own. Hammond stops him, but after he finds out about Rya'c and seeing Teal'c sdetermination, and with the promise of recovering a larva and undermining the Jaffa's belief in the divinity of the Goa'uld, Hammond eventually agrees.

SG-1 returns to Chulak, disguised as scholars of the court of Apophis, and at Teal'c old home (now brned down) they make contact with Bra'tac, anothyer Jaffa rebel and Teal'c's old mentor. Since being declared "shol'va" (outcast, cursed, condemned), Teal'c's family have been demoted in Jaffa society and live in a primitive camp. Bra'tac takes Jack and Teal'c to Teal'c's family while Sam and Daniel watch the Gate. They spot priests delivering a container of Goa'uld larva to a nearby temple and follow.

Teal'c interrupts the implantation ceremony, the prim'ta, and rescues his son. Drey'auc is none too happy with the low straits that Teal'c's actions have brought their family to. Worse, Teal'c son is suffering from the equivalent of scarlet fever and only a Goa'uld symbiote can "cure" him. Daniel and Sam have sneaked into the temple and taken a larva. Before they can get back it is too late - Rya'c is on the verge of death and Teal'c gives up his symbiote to give it to his son.

Without his symbiote, Teal'c is dying as his immune system shuts down. Daniel and Sam show up and they give the captured symbiote to Teal'c. As he begins to recover they head for the Stargate. Once Teal'c is strong enough he says goodbye to his son and wife, telling them to claim he kidnapped them against their will.

After a brief reconcilation, Drey'auc leaves with Rya'c and Bra'tac takes them to the Gate pretending he has taken SG-1 prisoner. Bra'tac takes out the guards and priests at the Gate, then stays behind as SG-1 makes their escape.