Collective Hindsight 2

During the Dominion War, Commander Salek and Lt. Commander Duffy of the S.C.E. dealt with a runaway vessel that was endangering a star system – a mission from which Salek did not return. Now, a year later, Salek's and Duffy's replacements – Commander Gomez and Lt. Commander Tev – are faced with the same runaway ship.
Facing more than one ghost from the past, can Gomez and Tev succeed where their predecessors failed?