Revelations | [s5e22]

: SG-1 is dispatched to an Asgard laboratory on the planet Adara II to rescue a scientist named Heimdall .

: The episode features the return of Osiris , who is using advanced technology provided by Anubis to detect cloaked vessels. [S5E22] Revelations

: This episode marks the first time the characters (and viewers) see the true, non-holographic appearance of the Asgard scientist Heimdall. : SG-1 is dispatched to an Asgard laboratory

: Heimdall has been studying an ancient Asgard ancestor—preserved in a stasis pod for thousands of years—whose DNA is key to fixing the Asgard's genetic flaws. : Heimdall has been studying an ancient Asgard

: The "paper" or research data being guarded is the culmination of Heimdall’s work to save his race from extinction. Episode Highlights

In this episode, the Asgard are facing a biological crisis because they have relied on cloning for too long, leading to genetic degradation.