 Following the Xindi mission , Enterprise undergoes a further refit in " Home " . In " Daedalus " , Dr. Emory Erickson ( Bill Cobbs ) , the inventor of the device , performed an upgrade on the transporter . Further upgrades occurred to the plasma injector in the warp drive , allowing Enterprise to reach a cruising speed of warp 5 @.@ 02 and an emergency speed of warp 5 @.@ 2 . While carrying a Tellarite Ambassador to a conference on Babel One , the ship is diverted due to attacks on several nearby vessels . It is discovered to be a Romulan vessel which uses holograms to change its appearance . The attacks are explained in " The Aenar " as being an attempt by the Romulans to provoke a war between the Andorians and the Tellarites , but instead Enterprise is used as the location for peace talks and is also one of a fleet of vessels used to create a sensor grid to track down the Romulan ship . This temporary alliance between the humans , Vulcans , Andorians and Tellerites becomes known as the Coalition of Planets . 
