 Enterprise is planning a trip to the relaxation planet Risa, when it gets an urgent request from the Vulcan High Command. They must pick up ambassador V Lar who has fallen in disgrace. Apparently she misused her position during negotiations on the planet Mazar and has been evicted. After Enterprise picked up V Lar and is on its way for a meeting with the Vulcan warship Sh Ran, suddenly a Mazarite ship appears. They want V Lar for further interrogating. When captain Archer wants to discuss it first with Starfleet Command, they open fire.