Handsome Jack isn't about to let you just waltz into Pandora without a fight.  Nosiree,  he's got plans for anyone who's looking to dive headfirst into Borderlands 2, so you better come prepared.  Just check out how he sums up the four protagonists from the game.  If that's not a challenge, I don't know what is.

Borderlands 2 hits the street in America September 18th, and worldwide September 21st.  As the man says, you're gonna need a lot of guns.