good one thor let me think about this
When 3 particular chevrons are entered the Stargate goes into time travel mode. The cast travel back to when the Ancients were actually running Atlantis. They attempt to prevent the replicators from being devised in the way that endangers the future Earth inhabitants of Atlantis.
Have to be Beckett(very popular cast member so will draw audiences)
MacKay (needed for the root plot and twist)
Armin Shimmerman (who else?) as the ancient scientist who designs
Twist in the Plot
Because of his arguments with MacKay replicators do indeed get made but are flawed.
MacKay actually causes the future problems.
I really like Quark's. Very much with the idea of Stargate with the twist.
This is for SGA.
A rogue replicator (Guest Star Summer Glau), who had been thrown from her ship during the war between the Ancients and the Wrath, 'crash lands' on a planet where the team is scouting. When she comes out of hibernation (from the cold Vacuum of Space), The team convinces her that they are Atlantians (Ancients). She directs them to a hangar of multiple Aurora Class War Ships. Unknown to her or the team until it is too late, a primitive yet violent people use the hangar as a home and hideout from the Wrath.
The replicator saves them... they all escape with one of the ships. She (Summer Glau) continues to be helpful as a lone replicator on their side in future episodes.
All usual, Shepard, McKay, Teyla, Ronnon, Dr. Keller, maybe Daniel Jackson just because he's pretty much awesome... might help out with putting together her history.
Guest Star: Summer Glau.
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