Star Trek: Enterprise - Season 2 - Eps 23: Regeneration
The remnants of an alien ship and two frozen cybernetic bodies are uncovered in the arctic by a research team. These aliens soon thaw out and flee Earth, taking the research team with them. Starfleet orders Enterprise to find them, but the crew aren't prepared for just how dangerous these aliens really are.
About Star Trek: Enterprise

Title: Star Trek: Enterprise
First Air Date: 2001-09-26
Last Air Date: 2005-05-13
Status: Canceled
Rating: 7.569/10 (from 832 votes)
Language: EN
Seasons: 5
Total Episodes: 97
Network: UPN
Genres: Sci-Fi & Fantasy, Action & Adventure, Drama
Production Companies: Paramount Television, CBS Studios
Synopsis
During the mid-22nd century, a century before Captain Kirk's five-year mission, Jonathan Archer captains the United Earth ship Enterprise during the early years of Starfleet, leading up to the Earth-Romulan War and the formation of the Federation.
Cast

Scott Bakula
Jonathan Archer

Jolene Blalock
T'Pol

Connor Trinneer
Charles 'Trip' Tucker III

John Billingsley
Phlox

Dominic Keating
Malcolm Reed

Linda Park
Hoshi Sato

Anthony Montgomery
Travis Mayweather