Six weeks into the Delphic Expanse, Captain Archer and his crew are still searching for clues regarding the mysterious Xindi. They're also adjusting to the newest members of the crew, a squad of Military Assault Command Operation soldiers (MACOs), led by Major Hayes. The crew learns of a Xindi working at a mining complex, and set out to track him down. Once they reach the complex, Archer and Reed head down to the grimy mine and meet with the alien Foreman. The Foreman offers a severed finger that he claims belongs to the Xindi worker. In exchange for a meeting with the worker, the Foreman demands a half liter of liquefied platinum. Back onboard, Phlox analyzes the finger and confirms that it is from a Xindi - however, it bears some intriguing variations from the Xindi inactive person that was recovered on Earth. The inactive person, Phlox explains, was reptilian. The finger is not.
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.