Stargate Atlantis (2004)

S5E5 Ghost in the Machine

During a mission, Lt. Colonel John Sheppard and his team unintentionally transport an enigmatic presence back to Atlantis. They quickly discover that this entity is none other than Dr. Elizabeth Weir, previously believed to have perished following her abduction by the Asurans. As they unravel the mystery surrounding her return, the team grapples with the implications of her unexpected reappearance and the challenges it brings to their ongoing struggles.