 In the shows opening credits, there is a "mystery ship" that  appears between the the shot of Zefram Cochranes Phoenix and  Captain Archers Enterprise. The mystery ship has a more primitive  layout than the Enterprise, and huge blue impulse engines. This ship  has never been named, and no explanation has been given as to what  its function is, although some fans speculate that it may be the  S.S. Valiant mentioned in the original series episode #1.3, "Where  No Man Has Gone Before".