The Cerritos joins a joint mission with the USS Merced to tow a disabled generation ship. The ship carries terraforming material that converts inert matter to organic matter. Freeman gives Mariner the most disliked jobs in an effort to force her to transfer to another ship, but Mariner finds a way to make these tasks enjoyable. Freeman then promotes Mariner to lieutenant in an effort to bore her into transferring. During the mission, the terraforming material cripples the Merced and begins terraforming the Cerritos...