Apophis has fallen in disgrace and is now being chased down by a Goa'uld called Sokar. He asks for SG-1's help so that he can live. He requires a new host to live and in exchange he will give Earth all the knowledge he has.
It begins with Faye complaining about the Bebop's shower. Her nagging of Jet leads to a question about his arm. Then an old partner of Jet's during his days with the ISSP, Fad, calls up wanting to team up with Jet one last time. Fad wants to go after a runaway prison ship that happens to be carrying an old enemy of Jet's, Udai Taxim, who used to be an assassin for the syndicate. Udai had something to do with Jet losing his arm. Jet at first refuses, but finally decides that this is something he must do.
Josh and Penny are treating two patients at a derelict building only to find themselves trapped as when the floor collapses as George's research is going too slow for Max's liking.