Mothership Zeta, the fifth and final expansion to the smash hit Fallout 3, will release this coming Monday on the Xbox 360 and Games for Windows, and Bethesda has released a new trailer to build hype. Zeta will take the Fallout franchise into outer space, where your character will encounter menacing new technology and devastating weapons. The whole experience will begin at a locale that many Fallout players already know well: the Wasteland’s alien crash site. Once aboard the massive ship, gamers will meet up with new characters and fight alongside them to save the last remnants of mankind from invasion. Check out the sneak-peek below.