Having managed to offend the Kreetassans yet again while negotiating for a much-needed plasma injector, Archer returns to Enterprise frustrated. Things get even worse when he learns that Porthos picked up some kind of pathogen on the Kreetassan homeworld, and must be confined to sickbay. Unfortunately, Porthos' condition only worsens, and Dr. Phlox must prevent the beagle's auto-immune system from collapsing entirely. As Archer worries about the fate of his pet, T'Pol informs him that she has discovered the reason for the Kreetassans' anger. Apparently, Porthos urinated on one of the 300-year-old Alvera trees - which are considered cultural treasures - outside the Hall of Diplomacy. In order to receive the plasma injector for Enterprise, the captain will most likely have to perform several acts of contrition. This infuriates Archer even more - especially since he thinks the Kreetassans should have known there was a pathogen in their atmosphere that Porthos couldn't handle.
Star Trek: Enterprise, a prequel set before the original series, follows the crew of Earth's first warp five starship. Lead by Jonathan Archer and his crew, the series follows their adventures as they explore never before seen parts of the galaxy, setting foot on new worlds and meeting new races, as well as some familiar ones.