Just as the Vulcans are discussing whether or not they should engage in join operations with Earth a bomb is detonated in Earth's embassy on Vulcan. They are quick to point their fingers at the Andorians but when Captain Archer points out that they would have nothing to gain from such an attack it is suggested that there is a possibility that Syrranites were involved. These aren't another race but a Vulcan sect who are considered heretics due to their different interpretation Surak' teachings. Surak was the Vulcan for ending their violent ways and developing their belief in pure logic. A search of the embassy leads to the discovery of an unexploded bomb which has the DNA of a leading Syrranite and soon after T'Pol is visited by her husband who informs her that her mother is with the Syrranites and gives her an artefact which maps a path to where they can be found. She is in a desert known as The Forge which can't be accessed by transporter due to the electrical activity there. Archer and T'Pol beam down to the edge of The Forge and go in on foot and end up meeting a Syrranite who, after being critically injured, puts his hand on Archer's face and says something in Vulcan; after this Archer's behaviour starts to change subtly and he knows things only a Syrranite would know. While Archer and T'Pol are out of contact on the surface the Vulcan Ambassador Suval mind melds with the only witness to the bombing, a security guard in a coma, and learns the real bomber was working for the Vulcan High Command.
This was a gripping episode which had the feel of a murder mystery in some ways; suspects were set up only to be proved innocent and those one least suspect turn out to be guilty. There is also plenty of action including the initial explosion, the finding of the second device which explodes just as the away team beam out and an animal attack and violent storm in The Forge. Regulars Scott Bakula and Jolene Blalock put in good performances as Archer and T'Pol and are ably supported by guest star Gary Graham who plays Suval.
