According to GameSpot, ”The leaked teaser begins with what appears to be a team of ghosts infiltrating a secure compound. The ghosts make short work of a security retinue, before the group’s leader issues the foreboding command: “Find Kerrigan.” Her statement is, of course, in reference to the Zerg faction’s leader, Sarah Kerrigan, who was once a ghost herself before being assimilated by the Swarm and set up as their queen.
The trailer then offers its first glimpse of series protagonist Jim Raynor, a space marine who is Kerrigan’s primary love interest. With Raynor in hot pursuit, the ghosts gain access to a sealed chamber. However, that chamber proves to be their end, as a massive energy burst from within levels the room and destroys the door.
Raynor then enters the blown-out room, only to be greeted by a posterior shot of an individual that is ostensibly Kerrigan.”
Since the trailer was pulled, with only a still here and there captured from it, we have to take GameSpot’s word for it. However, this could mean that the trailer will debut next week when E3 launches.