Hot on the tail of the first official Star Trek: Into Darkness trailer is the second, which tells us more while at the same time teases us into trying to work out who exactly the bad guy played by Benedict Cumberbatch is, could he really be playing Khan, judge for yourself in the video below.
Here is a little bit from the synopsis for Star Trek: Into Darkness;
When the crew of the Enterprise is called back home, they find an unstoppable force of terror from within their own organization has detonated the fleet and everything it stands for, leaving our world in a state of crisis. With a personal score to settle, Captain Kirk leads a manhunt to a war-zone world to capture a one man weapon of mass destruction.
Source [Star Trek]