Deep Space Nine
Disc No :
First Aired :
10 Feb 1997
We discover that Bashir was replaced whilst still wearing an old-style uniform. So presumably the Bashir we have seen on the station has been a Founder since at least the uniform changeover. For one thing, this means he had ample opportunity to kill Sisko during "Rapture" and blame it on the brain damage he was suffering. For another, it means that he let another changeling die in "The Begotten", when linking with it might have saved it. I imagine both of these things would have made the other Founders pretty mad.
When a message from Enabren Tain is transmitted through the wormhole, Garak and Worf are dispatched to see if he is still alive. But they are quickly captured and imprisoned on a penal asteroid by a Dominion invasion force gathering on the far side of the wormhole...