A stranger on board is connected to the Temporal Cold War.
Enterprise takes aboard a group of alien pilgrims who wish to watch a stellar phenomenon, and soon an act of sabotage nearly destroys the ship. Crewman Daniels reveals to Archer that he is an agent from the future, sent to stop the Suliban Cabal's interference in history.
Daniels warns that Silik, the Suliban operative from the pilot, is hidden on board. Archer must decide whether to trust either man, as each tells a different story about the Temporal Cold War. Silik ultimately appears to kill Daniels before escaping. The episode was directed by Robert Duncan McNeill and written by Stephen Beck and Tim Finch.