A Romulan plot of 2367 in which Geordi La Forge was abducted and conditioned to kill the Klingon governor Vagh, in order to break the alliance between the Federation and the Klingon Empire.
The attempted assassination of Governor Vagh is the plot of the Next Generation episode The Mind's Eye. La Forge is seized by Romulans while travelling to Risa and a double takes his place there. Using the inputs of his VISOR, his captors condition him to obey orders without remembering them, then send him back to the Enterprise-D.
The ship is carrying the Klingon ambassador Kell to Krios, a Klingon colony whose governor, Vagh, accuses the Federation of arming local rebels. Federation weapons do turn up, planted by the Romulans, and La Forge is to shoot Vagh in public so that Starfleet takes the blame.
Data traces strange signals to La Forge's VISOR and has him stopped at the last moment. The signals could only have come from Picard or Kell, and Vagh takes the ambassador away for questioning. A shadowy Romulan officer watching the conditioning is later revealed to be Sela.