If you thought the first 'G.I. Joe' had a lot of action, guns, and explosions, wait until you see the trailer for the sequel below.

'G.I. Joe 2: Retaliation' doesn't have Dennis Quaid or Joseph Gordon-Levitt, but it does have The Rock and Bruce Willis. Oh, and a female ninja named Jinx.

This time out, bad guys Cobra actually take over the United States, and it's up to The Rock and his crew to save the day. It opens on June 29th, 2012, but you can check out the first trailer below.

[via Machinima]