While returning to Enterprise in Shuttlepod One, Trip and Reed see apparent evidence that the ship has been destroyed. With only days of oxygen left, they must find a way to survive long enough for rescue.
Lieutenant Reed discovers a rogue planet, which has broken out of orbit and therefore is devoid of any light. Life is still possible in some places because heat is bubbling up from under the surface, but T'Pol doesn't detect any humanoid life. Further scans however give a strange energy reading which seems to be coming from a ship on the surface. After the crew has landed, they encounter the Eska. The Eska come from another planet and they say they are hunting for the drayjin, an animal considered a delicacy. When captain Jonathan Archer tries to sleep on the planet, ...
A fibrous, web-like alien creature comes aboard the ship and several of the crew becomes entangled in it including Archer and Trip, and it seems Hoshi is the only one who can try to communicate with the creature.
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.
Enterprise is for the second time on its way to Risa when yet again another urgent matter comes up: a distress call. It comes from a small vessel. The owner, Zobral, is extremely happy with the help from Enterprise and invites Captain Archer to his home world for a good meal and a game of Geskana. When Archer and Trip have landed on the desert planet, Enterprise gets a message from the Torothan Chancellor Trelit. He says Zobral isn't as nice a man as captain Archer thinks.
Enterprise discovers a mining colony of the Paraagans. The crew gets an invitation for a meeting on the surface and a shuttle pod tries to break through the atmosphere. All of the sudden just under the shuttle a giant explosion begins and scorches the earth beneath. All 3600 colonists are reported dead. After examination Enterprise finds out plasma leaking from the pod's vents ignited tetrazine in the atmosphere. Lieutenant Reed however ensures he closed the plasma vents before the shuttle went of. After conversations with admiral Forrest of Starfleet Command, captain...
Captain Archer and temporal agent Daniels have been stranded in the 31st century. In a library they investigate the damage to the time line and try to find way a to get Archer back in his own century. Meanwhile Silik the Suliban leader is trying his utmost to find the whereabouts of Archer and he is willing to go far for the answer. But the crew of Enterprise has plans of their own. Trip finds a way to use the com system and is able to speak with Reed. Together they try to contact other crew members and make plans to purge Enterprise of the Sulibans.
On the first anniversary of her assignment to Enterprise, T'Pol tells Archer and Trip about the first contact between humans and Vulcans, which involves three Vulcans becoming stranded in the town of Carbon Creek, Pennsylvania in 1957.
After previously offending the Kreetassans, Enterprise attempts to make a better second impression, only to upset the alien race once again. A frustrated Captain Archer returns from the planet only to be further upset to find that his dog Porthos, has been affected by a pathogen native to the world. While Phlox works around the clock treating Porthos, Archer stands vigil in sickbay, experiencing first-hand the quirky everyday life of his Denobulan Doctor.
Upon returning from covertly observing a pre-warp culture, Lieutenant Reed realizes he lost his communicator somewhere on the planet. Archer and Reed return to recover the lost technology, only to find the natives found it first. Captured and interrogated, the crewmen find themselves doing even more damage to the culture, who have scanned the prisoners and know them to be of another race. Meanwhile, Tucker and Mayweather try to figure out how to active the cloak on the Suliban cell ship so they can mount a discreet rescue.