The Vulcan High Command dispatches T'Pol to capture a fugitive who has eluded them for nearly two decades, and she joined on her mission by Captain Archer.

Sub-Commander T'Pol receives a covert mission from the Vulcan High Command, and informs Captain Archer that Admiral Forrest will be contacting him later about it.

In conversation with Archer, she later reveals that she was trained 17 (Earth) years earlier in reconnaissance retrieval, and now she is to capture the only one of six surgically altered, rogue Vulcan secret agents to have evaded her.

Archer, T'Pol, and Ensign Mayweather easily track the fugitive, Menos, to a cantina on the icy Pernaia Prime moon.

Because of the Vulcan cultural aversion to taking life, she received "fullara" treatment on P'Jem,[2] where her memory and emotions of the incident were fully repressed.

Back on the planet, Menos organizes an escape by starting a fire, but is recaptured by the away team when his cloaked hiding space is detected, confirming that he was indeed smuggling biotoxins as the Vulcan High Command had indicated.