The Enterprise finally return home after their year long mission in Delphic Expanse. While everyone is gracious of their successful mission, Captain Archer is particularly anguished in losing 27 crew members during the mission. At the Command Council, Ambassador Soval accused Archer that he didn't do enough to saved the Vulcan ship he found in The Expanse. Admiral Forrest sees the need for Archer to have some relaxation time and orders him to take a shore leave before he leave on his next mission. A reluctant Archer decides to climb mountains to clear his head, but soon finds an old friend from his days at the command school comes and joins him.
Meanwhile T'Pol decides to visit her mother back in Vulcan and invites Trip to join her.
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.